Table of Contents

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
____________________
FORM 10-Q
____________________
FORM
10-Q
(Mark One)
x
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended March 31, 20212024
OR
o
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from
______ to ______
to
Commission File Number:
001-38205
____________________
Zai Lab logo.jpg
ZAI LAB LIMITED
(Exact Name of Registrant as Specified in its Charter)
____________________
Cayman Islands98-1144595
Cayman Islands
98-1144595
(State or other jurisdictionOther Jurisdiction of
incorporation
Incorporation
or organization)
Organization)
(I.R.S. Employer

Identification No.)
4560 Jinke Road
Bldg. 1, Fourth Floor,
Pudong
Shanghai
Shanghai, China
201210
314 Main Street
4th Floor, Suite 100
Cambridge, MA, USA
02142
(Address of principal executive offices)Principal Executive Offices)
(Zip Code)
+86 21 6163216163 2588
+1 857 706 2604
(Registrant’s Telephone Number, Including Area Code)
____________________
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading
Symbol(s)
Trading
Symbol(s)
Name of each exchange
on which registered
American Depositary Shares, each representing 1 Ordinary Share, par value $0.00006 per share
ZLAB
The Nasdaq Global Market
10 Ordinary Shares, par value $0.00006$0.000006 per share*
share
ZLAB
9688
The Nasdaq Global Market
Ordinary Shares, par value $0.000006 per share*9688
The Stock Exchange of Hong Kong Limited
*
Included in connection with the registration of the American Depositary Shares with the Securities and Exchange Commission. The ordinary shares are not registered or listed for trading in the United States but are listed for trading on The Stock Exchange of Hong Kong Limited.
*Included in connection with the registration of the American Depositary Shares with the Securities and Exchange Commission. The ordinary shares are not registered or listed for trading in the United States but are listed for trading on The Stock Exchange of Hong Kong Limited.
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days
.    
days. Yes
☒ No
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation
S-T
232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files)
.
Yes
☒ No
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a
non-accelerated
filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule
12b-2
of the Exchange Act.
Large accelerated filerxAccelerated filero
Non-accelerated fileroSmaller reporting companyo
Emerging growth companyo
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
Indicate by check mark whether the registrant is a shell company (as defined in Rule
12b-2
of the Exchange Act).
Yes No
As of April 30, 2021,
94,908,743
May 2, 2024, 992,087,430 ordinary shares of the registrant, par value $0.00006$0.000006 per share, were outstanding, of which
65,326,281
758,101,320 ordinary shares were held in the form of American Depositary Shares.



This report contains certain forward-looking statements, including statements relating to our strategy and plans; potential of Contentsand expectations for our business, commercial products, and pipeline programs; the market for our commercial and pipeline products; capital allocation and investment strategy; clinical development programs and related clinical trials; clinical trial data, data readouts, and presentations; risks and uncertainties associated with drug development and commercialization; regulatory discussions, submissions, filings, and approvals and the timing thereof; the potential benefits, safety, and efficacy of our products and product candidates and those of our collaboration partners; the anticipated benefits and potential of investments, collaborations, and business development activities; our profitability and timeline to profitability; and our future financial and operating results. All statements, other than statements of historical fact, included in this report are forward-looking statements, and can be identified by words such as “aim,” “anticipate,” “believe,” “contemplate,” “continue,” “could,” “estimate,” “expect,” “forecast,” “goal,” “intend,” “may,” “plan,” “possible,” “potential,” “predict,” “project,” “seek,” “should,” “target,” “will,” “would,” or the negative of these terms or similar expressions. Such statements constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are not guarantees or assurances of future performance. Forward-looking statements are based on our expectations and assumptions as of the date of this report and are subject to inherent uncertainties, risks, and changes in circumstances that may differ materially from those contemplated by the forward-looking statements. We may not actually achieve the plans, carry out the intentions, or meet the expectations or projections disclosed in our forward-looking statements, and you should not place undue reliance on these forward-looking statements. Actual results may differ materially from those indicated by such forward-looking statements as a result of various important factors, including but not limited to the following:
•    Our ability to successfully commercialize and generate revenue from our approved products;
•    Our ability to obtain funding for our operations and business initiatives;
•    The results of our clinical and pre-clinical development of our product candidates;
•    The content and timing of decisions made by the relevant regulatory authorities regarding regulatory approvals of our product candidates;
•    Changes in U.S. and China trade policies and relations, as well as relations with other countries, and/or changes in regulations and/or sanctions;
•    Actions the Chinese government may take to intervene in or influence our operations;
•    Economic, political, and social conditions in mainland China, as well as governmental policies;
•    Uncertainties in the Chinese legal system, including with respect to the anti-corruption enforcement efforts in China and the Counter-Espionage Law, the Data Security Law, the Cyber Security Law, the Cybersecurity Review Measures, the Personal Information Protection Law, the Regulation on the Administration of Human Genetic Resources, the Biosecurity Law, the Measures on Security Assessment of Cross-Border Data Transfer (the “Security Assessment Measures”), and other future laws and regulations or amendments to such laws and regulations;
•    Approval, filing, or procedural requirements imposed by the China Securities Regulatory Commission or other Chinese regulatory authorities in connection with issuing securities to foreign investors under Chinese law;
•    Any violation or liability under the U.S. Foreign Corrupt Practices Act (“FCPA”) or Chinese anti-corruption laws;
•    Restrictions on currency exchange;
•    Limitations on the ability of our Chinese subsidiaries to make payments to us;
•    Chinese requirements on the ability of residents in mainland China to establish offshore special purpose companies;
•    Chinese regulations regarding acquisitions of companies based in mainland China by foreign investors;
•    Any issues that our Chinese manufacturing facilities may have with operating in conformity with established Good Manufacturing Practices (“GMPs”) and international best practices, and with passing U.S. Food and Drug Administration (“FDA”), China National Medical Products Administration (“NMPA”), and European Medicines Agency (“EMA”) inspections;



•    Expiration of, or changes to, financial incentives or discretionary policies granted by local governments in mainland China;
•    Restrictions or limitations on the ability of overseas regulators to conduct investigations or collect evidence within mainland China;
•    Business disruptions caused by pandemics such as COVID-19, international war or conflict such as the Russia/Ukraine and Israel/Hamas wars, natural disasters, extreme weather events, and other significant disruptions outside of our control;
•    Unfavorable tax consequences to us and our non-Chinese shareholders or American Depositary Share (“ADS”) holders if we were to be classified as a Chinese resident enterprise for Chinese income tax purposes;
•    Failure to comply with applicable Chinese, U.S., and Hong Kong regulations that could lead to government enforcement actions, fines, other legal or administrative sanctions, and/or harm to our business or reputation;
•    Review by the U.S. Committee on Foreign Investment (“CFIUS”) in our investments or other delays or obstacles for closing transactions;
•    Any inability to renew our current leases on desirable terms or otherwise locate desirable alternatives for our leased properties;
•    Any inability of third parties on whom we rely to conduct our pre-clinical and clinical trials to successfully carry out their contractual duties or meet expected deadlines; and
•    Any inability to obtain or maintain sufficient patent protection for our products and product candidates.
These factors should not be construed as exhaustive and should be read with the other cautionary statements and information in our Annual Report on Form 10-K for the year ended December 31, 2023 (the “2023 Annual Report”), and this report. Forward-looking statements are based on our management’s beliefs and assumptions and information currently available to our management. These statements, like all statements in this report, speak only as of their date. We anticipate that subsequent events and developments will cause our expectations and assumptions to change, and we undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise, except as may be required by law. These forward-looking statements should not be relied upon as representing our views as of any date subsequent to the date of this report.
Usage of Terms
Unless the context requires otherwise, references in this report to “Greater China” refer to mainland China, Hong Kong Special Administrative Region (“Hong Kong” or “HK”), Macau Special Administrative Region (“Macau”), and Taiwan, collectively; references to “Zai Lab,” the “Company,” “we,” “us,” and “our” refer to Zai Lab Limited, a holding company, and its subsidiaries, on a consolidated basis; and references to “Zai Lab Limited” refer to Zai Lab Limited, a holding company. Zai Lab Limited is the entity in which investors hold their interest.
Our operating subsidiaries consist of Zai Lab (Hong Kong) Limited, domiciled in Hong Kong; Zai Auto Immune (Hong Kong) Limited, domiciled in Hong Kong; Zai Anti Infectives (Hong Kong) Limited, domiciled in Hong Kong; Zai Lab (Shanghai) Co., Ltd., domiciled in mainland China; Zai Lab International Trading (Shanghai) Co., Ltd., domiciled in mainland China; Zai Lab (Suzhou) Co., Ltd., domiciled in mainland China; Zai Biopharmaceutical (Suzhou) Co., Ltd., domiciled in mainland China; Zai Lab Trading (Suzhou) Co., Ltd., domiciled in mainland China; Zai Lab (Taiwan) Limited, domiciled in Taiwan; Zai Lab (AUST) Pty. Ltd., domiciled in Australia; and Zai Lab (US) LLC, domiciled in the United States. As of the date of this report, Zai Anti Infectives (Hong Kong) Limited has non-substantial business operations.
We own various trademarks, including various forms of the Zai Lab brand (in English and Chinese), as well as several domain names that incorporate such trademarks. Trademarks and trade names of other companies appearing in this report are the property of their respective holders. Solely for convenience, some of the trademarks and trade names in this report are referred to without the ® and ™ symbols, but such references should not be construed as any indicator that their respective owners will not assert, to the fullest extent under applicable law, their rights thereto. We do not intend our use or display of other companies’ trademarks and trade names to imply a relationship with, or endorsement or sponsorship of, any other company.



PART I—I – FINANCIAL INFORMATION
The following discussion and analysis of our financial condition and results of operations should be read in conjunction with the unaudited condensed consolidated financial statements and the accompanying notes included in this Quarterly Report on Form
10-Q
report and the audited consolidated financial information and the accompanying notes thereto included in our 2023 Annual Report on Form
10-K
for the year ended December 31, 2020, which was filed with the Securities and Exchange Commission, or SEC, on March 1, 2021.
Report.
This discussion contains certain forward-looking statements that involve risks and uncertainties. Forward-looking statements are identified by words such as “believe,” “will,” “may,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “expect,” “predict,” “could,” “potentially,” “contemplate,” “project,” “seek,” “target,” “would” or the negative of these terms or similar expressions. You should read these statements carefully because they discuss future expectations, contain projections of future results of operations or financial condition, or state other “forward-looking” information, including all matters that are not historical facts. These forward-looking statements relate to our future plans, objectives, expectations, intentions and financial performance and the assumptions that underlie these statements. These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those anticipated in the forward-looking statements because they relate to events and depend on circumstances that may or may not occur in the future. Factors that might cause such a difference include, but are not limited to, those discussed in the “Risk Factors” section of our Annual Report on Form
10-K
and those “Risk Factors” discussed below in Part II, Item 1A. Forward-looking statements are based on our management’s beliefs and assumptions and on information currently available to our management. These statements, like all statements in this Quarterly Report on Form
10-Q,
speak only as of their date, and except as required by law, we undertake no obligation to update or revise these statements in light of future developments. We caution investors that our business and financial performance are subject to substantial risks and uncertainties.
1


Item 1. Financial Statements
Statements.
Zai Lab Limited
Unaudited condensed consolidated balance sheets
Condensed Consolidated Balance Sheets
(Inin thousands of U.S. dollars (“$”), except for number of shares and per share data)
NotesMarch 31,
2024
December 31,
2023
Assets
Current assets
Cash and cash equivalents3650,780 790,151 
Restricted cash, current100,000 — 
Short-term investments— 16,300 
Accounts receivable (net of allowance for credit losses of $18 and $17 as of March 31, 2024 and December 31, 2023, respectively)60,422 59,199 
Notes receivable15,363 6,134 
Inventories, net437,851 44,827 
Prepayments and other current assets24,224 22,995 
Total current assets888,640 939,606 
Restricted cash, non-current1,114 1,113 
Long term investments14,109 9,220 
Prepayments for equipment89 111 
Property and equipment, net552,386 53,734 
Operating lease right-of-use assets15,187 14,844 
Land use rights, net3,034 3,069 
Intangible assets, net12,398 13,389 
Long-term deposits1,480 1,209 
Total assets988,437 1,036,295 
Liabilities and shareholders’ equity  
Current liabilities  
Accounts payable88,121 112,991 
Current operating lease liabilities7,536 7,104 
Short-term debts948,273 — 
Other current liabilities1048,176 82,972 
Total current liabilities192,106 203,067 
Deferred income26,297 28,738 
Non-current operating lease liabilities7,540 8,047 
Other non-current liabilities325 325 
Total liabilities226,268 240,177 
Commitments and contingencies (Note 15)  
Shareholders’ equity  
Ordinary shares (par value of $0.000006 per share; 5,000,000,000 shares authorized; 978,197,710 and 977,151,270 shares issued as of March 31, 2024 and December 31, 2023, respectively; 973,285,510 and 972,239,070 shares outstanding as of March 31, 2024 and December 31, 2023, respectively)
Additional paid-in capital2,993,282 2,975,302 
Accumulated deficit(2,249,451)(2,195,980)
Accumulated other comprehensive income39,168 37,626 
Treasury Stock (at cost, 4,912,200 shares as of both March 31, 2024 and December 31, 2023)(20,836)(20,836)
Total shareholders’ equity762,169 796,118 
Total liabilities and shareholders’ equity988,437 1,036,295 
       
As of
 
       
March 31,

2021
  
December 31,
2020
 
   
Notes
   
$
  
$
 
Assets
              
Current assets:
        
                        
   
                        
 
Cash and cash equivalents
   3    1,013,420   442,116 
Short-term investments
   5    —     744,676 
Accounts receivable (net of allowance of $2 and $1 as of March 31, 2021 and 2020, respectively)
        8,815   5,165 
Inventories
   6    12,629   13,144 
Prepayments and other current assets
        14,321   10,935 
               
Total current assets
        1,049,185   1,216,036 
Restricted cash,
non-current
   4    743   743 
Investments in equity investees
   7    1,473   1,279 
Prepayments for equipment
        244   274 
Property and equipment, net
   8    29,016   29,162 
Operating lease
right-of-use
assets
        16,652   17,701 
Land use rights, net
        7,784   7,908 
Intangible assets, net
        1,585   1,532 
Long term deposits
        910   862 
Value added tax recoverable
        23,698   22,141 
               
Total assets
       
 
1,131,290
 
 
 
1,297,638
 
               
Liabilities and shareholders’ equity
              
Current liabilities:
              
Accounts payable
        41,415   62,641 
Current operating lease liabilities
        5,602   5,206 
Other current liabilities
   11    45,639   30,196 
               
Total current liabilities
        92,656   98,043 
Deferred income
        16,657   16,858 
Non-current
operating lease liabilities
        12,307   13,392 
               
Total liabilities
       
 
121,620
 
 
 
128,293
 
               
Commitments and contingencies (Note 18)
            
Shareholders’ equity
              
Ordinary shares (par value of $0.00006 per share; 500,000,000 shares authorized, 88,519,172 and 74,666,725 shares issued and outstanding as of March 31, 2021 and 2020, respectively)
        5   5 
Additional
paid-in
capital
        1,967,802   1,897,467 
Accumulated deficit
        (946,513  (713,603
Accumulated other comprehensive loss
   15    (11,624  (14,524
               
Total shareholders’ equity
       
 
1,009,670
 
 
 
1,169,345
 
               
Total liabilities and shareholders’ equity
       
 
1,131,290
 
 
 
1,297,638
 
               
The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.
3
2

Zai Lab Limited
Unaudited condensed consolidated statementsCondensed Consolidated Statements of operations
Operations
(Inin thousands of U.S. dollars (“$”)$, except for number of shares and per share data)
Three Months Ended March 31,
Notes20242023
Revenue687,149 62,797 
Expenses
Cost of sales(33,619)(21,337)
Research and development(54,645)(48,472)
Selling, general, and administrative(69,194)(62,510)
Loss from operations(70,309)(69,522)
Interest income9,658 10,232 
Interest expenses(113)— 
Foreign currency (losses) gains(2,068)8,912 
Other income, net139,361 1,234 
Loss before income tax(53,471)(49,144)
Income tax expense7— — 
Net loss(53,471)(49,144)
Loss per share - basic and diluted8(0.05)(0.05)
Weighted-average shares used in calculating net loss per ordinary share - basic and diluted 973,145,760 961,444,780 
       
Three Months Ended March 31,
 
       
2021
  
2020
 
   
Notes
   
$
  
$
 
Revenue
  9    20,103   8,218 
Expenses:
             
Cost of sales
       (7,505  (2,084
Research and development
       (203,852  (33,742
Selling, general and administrative
       (35,838  (18,714
              
Loss from operations
       (227,092  (46,322
Interest income
       214   1,655 
Interest expenses
       —     (59
Other
expense
,
 net
       (6,227  (3,125
              
Loss before income tax and share of gain (loss) from equity method investment
       (233,105  (47,851
Income tax expense
  10    0—     —   
Share of gain (loss) from equity method investment
       195   (137
              
Net loss
       (232,910  (47,988
              
Net loss attributable to ordinary shareholders
       (232,910  (47,988
              
Loss per share - basic and diluted
  12    (2.64  (0.66
Weighted-average shares used in calculating net loss per ordinary share - basic and diluted
       88,374,928   72,956,538 
The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.
4
3

Zai Lab Limited
Unaudited condensed consolidated statementsCondensed Consolidated Statements of comprehensive loss
Comprehensive Loss
(Inin thousands of U.S. dollars (“$”) except for number of shares and per share data)
$)
   
Three Months Ended March 31,
 
   
2021
  
2020
 
 
 
   
$
  
$
 
 
 
Net loss
   (232,910  (47,988
Other comprehensive income, net of tax of NaN:
         
Foreign currency translation adjustments
   2,900   3,539 
          
Comprehensive loss
  
 
(230,010
 
 
(44,449
          

Three Months Ended March 31,
20242023
Net loss(53,471)(49,144)
Other comprehensive income, net of tax of nil:
Foreign currency translation adjustments1,542 (8,413)
Comprehensive loss(51,929)(57,557)
The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.
4


Zai Lab Limited
Unaudited Condensed Consolidated Statements of Shareholders’ Equity
(in thousands of $, except for number of shares)

Ordinary SharesAdditional
paid
in capital
Accumulated
deficit
Accumulated
other
comprehensive
income (loss)
Treasury StockTotal
Number
of
Shares
AmountSharesAmount
Balance at December 31, 2023977,151,270 2,975,302 (2,195,980)37,626 (4,912,200)(20,836)796,118 
Issuance of ordinary shares upon vesting of restricted shares1,046,440 00— — — — — 
Share-based compensation— — 17,980 — — — — 17,980 
Net loss— — — (53,471)— — — (53,471)
Foreign currency translation— — — — 1,542 — — 1,542 
Balance at March 31, 2024978,197,710 2,993,282 (2,249,451)39,168 (4,912,200)(20,836)762,169 

Balance at December 31, 2022962,455,850 2,893,120 (1,861,360)25,685 (2,236,280)(11,856)1,045,595 
Issuance of ordinary shares upon vesting of restricted shares732,040 00— — — — — 
Exercise of share options4,009,460 01,673 — — — — 1,673 
Receipt of shares netted to satisfy tax withholding obligations related to share-based compensation— — — — — (1,272,330)(5,130)(5,130)
Share-based compensation— — 16,661 — — — — 16,661 
Net loss— — — (49,144)— — — (49,144)
Foreign currency translation— — — — (8,413)— — (8,413)
Balance at March 31, 2023967,197,350 2,911,454 (1,910,504)17,272 (3,508,610)(16,986)1,001,242 
The accompanying notes are an integral part of these unaudited condensed consolidated financial statements. “0” in above table means less than 1,000 dollars.
5

Zai Lab Limited
Unaudited condensed consolidated statementsCondensed Consolidated Statements of shareholders’ (deficit) equity
Cash Flows
(Inin thousands of U.S. dollars (“$”) except for number of shares and per share data)
$)
Three Months Ended
March 31,
20242023
Cash flows from operating activities
Net loss(53,471)(49,144)
Adjustments to reconcile net loss to net cash used in operating activities:  
Allowance for credit losses
Inventory write-down37 377 
Depreciation and amortization expenses3,012 2,657 
Amortization of deferred income(840)(582)
Share-based compensation17,980 16,661 
Gain from fair value changes of equity investment with readily determinable fair value(4,889)(441)
Losses on disposal of property and equipment407 64 
Noncash lease expenses2,069 2,464 
Debt issuance costs700 — 
Foreign currency remeasurement impact2,068 (8,912)
Changes in operating assets and liabilities:  
Accounts receivable(1,328)(2,852)
Notes receivable(9,239)(8,599)
Inventories6,818 (6,686)
Prepayments and other current assets(1,253)(6,470)
Long-term deposits(271)72 
Accounts payable(13,370)(327)
Other current liabilities(34,204)(15,593)
Operating lease liabilities(2,783)(2,141)
Deferred income(1,550)9,839 
Other non-current liabilities— 325 
Net cash used in operating activities(90,106)(69,287)
Cash flows from investing activities  
Purchases of short-term investments— (100,000)
Proceeds from maturity of short-term investment16,300 49,450 
Purchases of property and equipment(974)(3,513)
Proceeds from the sale of property and equipment— 112 
Acquisition of intangible assets(12,034)(3)
Net cash provided by (used in) investing activities3,292 (53,954)
Cash flows from financing activities  
Proceeds from short-term debts48,248 — 
Payments of debt issuance costs(700)— 
Proceeds from exercises of stock options— 1,197 
Taxes paid related to settlement of equity awards— (5,083)
Net cash provided by (used in) financing activities47,548 (3,886)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash(104)(1,299)
Net decrease in cash, cash equivalents and restricted cash(39,370)(128,426)
Cash, cash equivalents and restricted cash - beginning of period791,264 1,009,273 
Cash, cash equivalents and restricted cash - end of period751,894 880,847 
Supplemental disclosure on non-cash investing and financing activities  
Payables for purchase of property and equipment2,481 4,232 
Payables for acquisition of intangible assets78 268 
Receivables for stock option exercise under equity incentive plans— 476 
Right-of-use asset acquired under operating leases2,395 2,662 
Receivables for disposal of property and equipment— 10 
Supplemental disclosure of cash flow information  
Cash paid for interest45 — 
   
Ordinary shares
   
Additional
      
Accumulated
other
    
   
Number of

Shares
   
Amount
   
paid

in capital
   
Accumulated

deficit
  
comprehensive

(loss) income
  
Total
 
       
$
   
$
   
$
  
$
  
$
 
Balance at December 31, 2020
   87,811,026    5    1,897,467    (713,603  (14,524  1,169,345 
Issuance of ordinary shares upon vesting of restricted shares
   81,600    0    0    —     —     0 
Exercise of shares option
   58,364    0    702    —     —     702 
Issuance of ordinary shares in connection with collaboration and license arrangement (Note 16)
   568,182    0    62,250    —     —     62,250 
Issuance cost adjustment for secondary listing
   —      —      65    —     —     65 
Share-based compensation
   —      —      7,318    —     —     7,318 
Net loss
   —      —      —      (232,910  —     (232,910
Foreign currency translation
   —      —      —      —     2,900   2,900 
                             
Balance at March 31, 2021
   88,519,172    5    1,967,802    (946,513  (11,624  1,009,670 
                             
Balance at December 31, 2019
   68,237,247    4    734,734    (444,698  4,620   294,660 
Issuance of ordinary shares upon vesting of restricted shares
   80,200    0    0    —     —     0 
Exercise of shares option
   49,278    0    346    —     —     346 
Issuance of ordinary shares upon
follow-on
public offering, net of issuance cost of $740
   6,300,000    0    280,568    —     —     280,568 
Share-based compensation
   —      —      6,463    —     —     6,463 
Net loss
   —      —      —      (47,988  —     (47,988
Foreign currency translation
   —      —      —      —     3,539   3,539 
                             
Balance at March 31, 2020
   74,666,725    4    1,022,111    (492,686  8,159   537,588 
                             
The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.
“0” in above table means less than 1,000 dollars.
6

Zai Lab Limited
Unaudited condensed consolidated statements of cash flows
(In thousands of U.S. dollars (“$”) except for number of shares and per share data)
   
Three Months Ended March 31,
 
   
2021
  
2020
 
   
$
  
$
 
Operating activities
   
                        
   
                        
 
Net loss
   (232,910  (47,988
Adjustments to reconcile net loss to net cash used in operating activities:
         
Allowance for doubtful accounts
   1   1 
Inventory write-down
   14   — �� 
Depreciation and amortization expenses
   1,448   1,070 
Amortization of deferred income
   (78  (78
Share-based compensation
   7,318   6,463 
Noncash research and development expenses
 
(Note 16)
   62,250   —   
Share of (gain) loss from equity method investment
   (195  137 
Loss on disposal of property and equipment
   4   —   
Noncash lease expenses
   1,322   1,062 
Changes in operating assets and liabilities:
         
Accounts receivable
   (3,651  (296
Inventories
   502   (45
Prepayments and other current assets
   (3,386  (1,375
Long term deposits
   (47  (349
Value added tax recoverable
   (1,558  (1,156
Accounts payable
   (21,226  4,495 
Other current liabilities
   21,707   (1,408
Operating lease liabilities
   (893  (663
Deferred income
   (122  289 
          
Net cash used in operating activities
   (169,500  (39,841
          
Cash flows from investing activities:
         
Proceeds from maturity of short-term investments
   743,902   50,000 
Purchase of property and equipment
   (1,683  (1,043
Purchase of intangible assets
   (214  (5
          
Net cash used in investing activities
   742,005   48,952 
          
Cash flows from financing activities:
         
Repayment of short-term borrowings
   —     (1,430
Proceeds from exercises of stock options
   702   346 
Proceeds from issuance of ordinary shares upon public offerings
   —     281,295 
Payment of public offering costs
   (973  (727
          
Net cash (used in) provided by financing activities
   (271  279,484 
          
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash
   (930  (947
          
Net increase in cash, cash equivalents and restricted cash
   571,304   287,648 
Cash, cash equivalents and restricted cash - beginning of period
   442,859   76,442 
          
Cash, cash equivalents and restricted cash - end of period
   1,014,163   364,090 
          
Supplemental disclosure on
non-cash
investing and financing activities:
         
Payables for purchase of property and equipment
   439   280 
Payables for intangible assets
   26   11 
Payables for public offering costs
   26   —   
Supplemental disclosure of cash flow information:
         
Cash and cash equivalents
   1,013,420   363,580 
Restricted cash,
non-current
   743   510 
          
Total cash and cash equivalents and restricted cash
   1,014,163   364,090 
          
Interest paid
   —     67 
The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.
7

Zai Lab Limited
Notes to the unaudited condensed consolidated financial statements

(In thousands of U.S. dollars (“$”) and Renminbi (“RMB”) except for number of shares and per share data)
1. Organization and principal activitiesPrincipal Activities
Zai Lab Limited (the “Company”) was incorporated on March 28, 2013 in the Cayman Islands as an exempted company with limited liability under the Companies LawAct of the Cayman Islands. The CompanyIslands (as amended). Zai Lab Limited and its subsidiaries (collectively referred to as the “Group”“Company”) are focused on discovering, developing, and commercializing therapiesproducts that address medical conditions with significant unmet medical needs including, in particular,the areas of oncology, autoimmune disorders, infectious disease, and infectious diseases.neuroscience.
The Group’sCompany’s principal operations and geographic markets are in mainland China (hereinafter referred to as “China”), Hong Kong, Macau and Taiwan (hereinafter collectively referred to as “Greater China”).Greater China. The GroupCompany has a substantial presence in Greater China and the United States.
2. Basis of presentationPresentation and consolidationConsolidation and significant accounting policiesSignificant Accounting Policies
(a) Basis of presentation
Presentation
The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with the instructions to Form
10-Q
and Article 10 of Regulation
S-X.
Accordingly, they do not include all information and disclosures necessary for a presentation of the Company’s financial position, results of operations, and cash flows in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”), and applicable rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. As such, the information included in this report should be read in conjunction with the consolidated financial statements and accompanying notes included in the Annual Report on Form 10-K for the year ended December 31, 2023 (the “2023 Annual Report”). InThe December 31, 2023 condensed consolidated balance sheet data included in this report were derived from the opinion of management, theseaudited financial statements in the 2023 Annual Report.
The accompanying condensed consolidated financial statements reflect all normal recurring adjustments and accrualsthat are necessary to present fairly the results for a fair statement of the Company’s unaudited condensed consolidated financial statements for such periods. Theinterim periods presented. Interim results of operations for any interim period are not necessarily indicative of the results for the full year. Theyear ending December 31, 2020 condensed consolidated balance sheets data were derived from audited financial statements, but do not include all disclosures required by U.S. GAAP. These financial statements should be read in conjunction with the financial statements and notes thereto contained in the Company’s Annual Report on Form
10-K2024.
for the year ended December 31, 2020.
(b) Principles of consolidationConsolidation
The unaudited condensed consolidated financial statements include the financial statementsaccounts of the CompanyZai Lab Limited and its subsidiaries.subsidiaries, which are wholly owned. All intercompany transactions and balances among the Group and its subsidiaries are eliminated upon consolidation.
(c) Use of estimatesEstimates
The preparation of the unaudited condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the period. Areas where management uses subjective judgment include, but are not limited to, estimating the useful livesaccrual of long-lived assets, estimating the current expected credit losses for financial assets, assessing the impairmentrebates, recognition of long-lived assets, discount rate of operating lease liabilities, revenue recognition, allocation of the research and development service expenses, to the appropriate financial reporting period based on the progressfair value of the research and development projects, share-based compensation expenses, and recoverability of deferred tax assetsassets. These estimates, judgments, and a lack of marketability discount ofassumptions can affect the ordinary shares issued in connection with collaboration and license arrangement
(Note 16). Management bases the estimates on historical experience and various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying valuesreported amounts of assets and liabilities.liabilities as of the date of the financial statements as well as the reported amounts of revenues and expenses during the periods presented. Actual results could differ from these estimates.
(d) Fair value measurements7
The Group applies ASC topic 820 (“ASC 820”),
 Fair Value Measurements and Disclosures
, in measuring fair value. ASC 820 defines fair value, establishes a framework for measuring fair value and requires disclosures to be provided on fair value measurement.
ASC 820 establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:
Level 1 - Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets.
Level 2 - Include other inputs that are directly or indirectly observable in the marketplace.
Level 3 - Unobservable inputs which are supported by little or no market activity.
8

Zai Lab Limited
Notes to the unaudited condensed consolidated financial statements
(d) Fair Value Measurements
(In thousands of U.S. dollars (“$”) and Renminbi (“RMB”) except for number of shares and per share data)
ASC 820 describes three main approaches to measuring theEquity investments with readily determinable fair value are measured using level 1 inputs and were $14.1 million and $9.2 million as of assetsMarch 31, 2024 and liabilities: (1) market approach; (2)December 31, 2023, respectively. The unrealized gains from fair value changes are recognized in other income, approach and (3) cost approach. The market approach uses prices and other relevant information generated from market transactions involving identical or comparable assets or liabilities. The income approach uses valuation techniques to convert future amounts to a single present value amount. The measurement is based onnet in the value indicated by current market expectations about those future amounts. The cost approach is based on the amount that would currently be required to replace an asset.condensed consolidated statements of operations.
Financial instruments of the GroupCompany primarily include cash and cash equivalents, current restricted cash, short-term investments, accounts receivable, notes receivable, prepayments and other current assets, non-current restricted cash, accounts payable, short-term debts, and other current liabilities. As of March 31, 2024 and December 31, 2023, the carrying values of cash and cash equivalents, current restricted cash, short-term investments, accounts receivable, prepayments and other current assets, accounts payable, and other payables. As of March 31, 2021 and December 31, 2020, the carrying values of cash and cash equivalents, short-term investments, accounts receivable, prepaymentsdebts, and other current assets, accounts payable and other payableliabilities approximated their fair values due to the short-term maturity of these instruments, and the carrying value of notes receivable and non-current restricted cash approximates itsapproximated their fair value based on the nature of the assessment of the ability to recover these amounts.
(e) Recent accounting pronouncements
Accounting Pronouncements
AdoptedIn November 2023, the Financial Accounting Standards
In December 2019, the FASB Board (“FASB”) issued ASU
2019-12,
Income Taxes No. 2023-07, Improvements to Reportable Segment Disclosures (Topic 740):
Simplifying the Accounting for Income Taxes
280). This update simplifiesASU requires all public entities, including public entities with a single reportable segment, to disclose the accounting for income taxes as parttitle and position of the FASB’s overall initiativeChief Operating Decision Maker (“CODM”) and the significant segment expenses and any additional measures of a segment’s profit or loss used by the CODM to reduce complexity in accounting standards. The amendments include removal of certain exceptions to the general principles of ASC 740,
Income taxes
,allocate resources and simplification in several other areas such as accounting for a franchise tax (or similar tax) that is partially based on income. The updateassess performance. This ASU is effective inon a retrospective basis for fiscal years beginning after December 15, 2020,2023 and for interim periods therein, and earlybeginning after December 15, 2024. Early adoption is permitted. Certain amendmentsThe Company is currently evaluating the impact of this ASU and expects to adopt it for the year ending December 31, 2024.
In December 2023, the FASB issued ASU No. 2023-09, Improvements to Income Tax Disclosures (Topic 740). This ASU requires disaggregated information about a reporting entity’s effective tax rate reconciliation as well as additional information on income taxes paid. This ASU is effective on a prospective basis for annual periods beginning after December 15, 2024. Early adoption is permitted. This ASU will result in additional disclosure in the consolidated financial statements, once adopted. The Company is currently evaluating the impact of this update should be applied retrospectively or modified retrospectively, all other amendments should be applied prospectively. ASU and expects to adopt it for the year ending December 31, 2025.
The Group adopted this standard on January 1, 2021. There was noCompany did not adopt any new accounting standards in the first quarter of 2024 that had a material impact toon the Group’s financial position or results of operations upon adoption.
(f) Significant accounting policies
Consolidated Financial Statements. For a more complete discussion ofadditional information on the Company’s significant accounting policies, and other information,refer to the unaudited condensed consolidated financial statements and notes thereto should be read in conjunction withto the consolidated financial statements included in the Company’s2023 Annual Report on Form
10-K
for the year ended December 31, 2020..
3. Cash and cash equivalents
   
As of
 
   
March 31,
2021
   
December 31,
2020
 
   
$
   
$
 
Cash at bank and in hand
   1,012,587    441,283 
Cash equivalents
   833    833 
           
    1,013,420    442,116 
           
Denominated in:
  
 
 
    
 
 
  
US$
   186,078    297,813 
RMB (note (i))
   37,732    23,898 
Hong Kong dollar (“HK$”)
   789,029    119,695 
Australian dollar (“A$”)
   581    710 
           
    1,013,420    442,116 
           
Note:
(i)
Certain cash and bank balances denominated in RMB were deposited with banks in China. The conversion of these RMB denominated balances into foreign currencies is subject to the rules and regulations of foreign exchange control promulgated by the government of the People’s Republic of China (“PRC”).
9
8

Zai Lab Limited
Notes to the unaudited condensed consolidated financial statements
(In thousands of U.S. dollars (“$”)3. Cash and Renminbi (“RMB”) except for number of shares and per share data)Cash Equivalents
4. Restricted cash,
non-current
The Group’s restrictedfollowing table presents the Company’s cash balanceand cash equivalents ($ in thousands):
March 31, 2024December 31, 2023
Cash649,666 789,051 
Cash equivalents (i)1,114 1,100 
 650,780 790,151 
Denominated in:  
US$630,583 762,436 
Renminbi (“RMB”) (ii)17,878 25,093 
Hong Kong dollar (“HK$”)1,513 1,974 
Australian dollar (“A$”)557 587 
Taiwan dollar (“TW$”)249 61 
650,780 790,151 
(i)Cash equivalents represent short-term and highly liquid investments in a money market fund.
(ii)Certain cash and bank balances denominated in RMB were deposited with banks in mainland China. The conversion of $743these RMB-denominated balances into foreign currencies is subject to the rules and $743
asregulations of March 31, 2021 and December 31, 2020, respectively, was long-term bank deposits held as collateral for issuance of letters of credit. These deposits will be released when the related letters of credit are settledforeign exchange control promulgated by the Group.
Chinese government.
5. Short-term investments4. Inventories, Net
Short-term investments are primarily comprised of time deposits with original maturities between
three months and
one year.
As of March 31, 2021, the Group held 0 short-term investment. As of December 31, 2020, the Group’s short-term investments consisted entirely of short-term held to maturity debt instruments with high credit ratings, which were determined to have no risk of expected credit loss. Accordingly
, 0
allowance for credit loss was recorded as of December 31, 2020. 
6. Inventories
The Group’s inventory balance of $12,629 and $13,144following table presents the Company’s inventories, net ($ in thousands):
as of March 31, 2021 and December 31, 2020, respectively, mainly consisted of finished goods purchased from Tesaro Inc., now
March 31, 2024December 31, 2023
Finished goods19,076 22,702 
Raw materials16,675 17,655 
Work in progress2,100 4,470 
Inventories, net37,851 44,827 
GlaxoSmithKline
(GSK), and NovoCure Limited (“NovoCure”) for distribution in Hong Kong, as well as finished goods, work in process and certain raw materials for ZEJULA commercialization in China.
   
As of
 
   
March 31,

2021
   
December 31,

2020
 
   
            $            
   
            $            
 
Finished goods
   2,703    3,041 
Raw materials
   9,588    10,103 
Work in process
   338    0   
           
Inventories
   12,629    13,144 
           
The Group write-downCompany writes down inventory for any excess or obsolete inventories or when the Group believeCompany believes that the net realizable value of inventories is less than the carrying value. During the three months ended March 31, 2021 and 2020, the GroupThe Company recorded write-downs of $43 and $NaN, respectively,in inventory, which were included in cost of revenues.
sales, of insignificant amount and $0.4 million in the first quarter of 2024 and 2023, respectively.
7. Investments in equity investees
In June 2017, the Group entered into an agreement with 3 third-parties to launch JING Medicine Technology (Shanghai) Ltd. (“JING”), an entity which provides services for product discovery and development, consultation and transfer of pharmaceutical technology. The capital contribution by the Group was RMB26,250 in cash, which was paid by the Group in 2017 and 2018, representing 20% and 18% of the equity interest of JING as of December 31, 2020 and March 31, 2021 respectively. The Group accounts for this investment using the equity method of accounting due to the fact that the Group can exercise significant influence on the investee.
The Group recorded its gain on deemed disposal in this investee of 
$463 and share of loss of $268 for the three months ended March 31, 2021, and recorded share of loss in this investee of $137 for the three months ended March 31, 2020.
10
9

Table of Contents

Zai Lab Limited
Notes to the unaudited condensed consolidated financial statements
(In thousands of U.S. dollars (“$”) and Renminbi (“RMB”) except for number of shares and per share data)
8.5. Property and equipment, net
Equipment, Net
PropertyThe following table presents the components of the Company’s property and equipment, consistnet ($ in thousands):
March 31, 2024December 31, 2023
Office equipment1,046 1,047 
Electronic equipment9,315 9,161 
Vehicle198 199 
Laboratory equipment20,162 20,140 
Manufacturing equipment17,658 17,680 
Leasehold improvements11,361 11,371 
Construction in progress24,834 24,272 
84,574 83,870 
Less: accumulated depreciation(32,188)(30,136)
Property and equipment, net52,386 53,734 
Depreciation expense was $2.2 million and $2.5 million in the first quarter of the following:
2024 and 2023, respectively.
   
As of
 
   
March 31,

2021
   
December 31,

2020
 
   
            $            
   
            $            
 
Office equipment
   428    430 
Electronic equipment
   2,876    2,646 
Vehicle
   194    143 
Laboratory equipment
   12,357    11,933 
Manufacturing equipment
   12,116    12,198 
Leasehold improvements
   9,642    9,641 
Construction in progress
   2,915    2,423 
           
    40,528    39,414 
Less: accumulated depreciation
   (11,512   (10,252
           
Property and equipment, net
   29,016    29,162 
           
Depreciation expenses for the three months ended March 31, 2021 and 2020 were $1,340 and $1,006, respectively.
9.6. Revenue
The Group’sCompany’s revenue is primarily derived from the salesales of ZEJULA and Optuneits commercial products primarily in China and Hong Kong.mainland China. The table below presents the Group’sCompany’s gross and net product sales for the three months ended March 31, 2021 and 2020.
revenue ($ in thousands):
Three Months Ended March 31,
20242023
Product revenue - gross93,112 71,212 
Less: Rebates and sales returns(5,963)(8,415)
Product revenue - net87,149 62,797 
   
Three Months Ended March 31,
 
   
2021
   
2020
 
   
            $            
   
            $            
 
Product revenue - gross
   46,555    8,937 
Less: Rebate
   (26,452   (719
           
Product revenue - net
   20,103    8,218 
           
Sales rebates are offered to distributors in mainland China, and the amounts are recorded as a reduction of revenue. Estimated rebates are determined based on contracted rates, sales volumes, and level of distributor inventories.
The following table disaggregatespresents the Company’s net revenue by product for($ in thousands):
Three Months Ended March 31,
20242023
ZEJULA45,501 42,680 
OPTUNE12,480 13,342 
QINLOCK6,093 1,306 
NUZYRA9,913 5,469 
VYVGART13,162 — 
Product revenue - net87,149 62,797 
10


Zai Lab Limited
Notes to the three months ended March 31, 2021 and 2020:unaudited condensed consolidated financial statements
   
Three Months Ended March 31,
 
   
2021
   
2020
 
   
            $            
   
            $            
 
ZEJULA
   12,606    6,345 
Optune
   7,130    1,873 
Others
   367    —   
           
Total product revenue - net
   20,103    8,218 
           
10.7. Income Tax
No provision for income taxes has been required to be accrued because the Company and all of its subsidiaries areis in a cumulative loss positionsposition for all the periods presented.
The Company recorded a full valuation allowance against deferred tax assets of all its consolidated entities because all entities were in a cumulative loss position as of March 31, 20212024 and December 31, 2020. NaN2023. No unrecognized tax benefits and related interest and penalties were recorded in any of the periods presented.
8. Loss Per Share
11

Zai Lab Limited
Notes toThe following table presents the unaudited condensed consolidated financial statements
(In thousands of U.S. dollars (“$”) and Renminbi (“RMB”) except for number of shares and per share data)
11. Other current liabilities
Other current liabilities consistcomputation of the following:
   
As of
 
   
March 31,

2021
   
December 31,

2020
 
   
            $            
   
            $            
 
Payroll
   7,694    13,694 
Professional service fee
   3,274    3,128 
Payables for purchase of property and equipment
   439    788 
Advance from customers
   3,280    —   
Accrued rebate to distributors
   23,166    7,067 
Others (note (i))
   7,786    5,519 
           
Total
   45,639    30,196 
           
Note:
(i)
Others are mainly payables to employees for exercising the share-based compensations, tax payables, payables for purchase of intangible assets, and payables related to travel and business entertainment expenses and conference fee
.
12. Loss per share
Basicbasic and diluted net loss per share for each of the period presented are calculated as follows:
($ in thousands, except share and per share data):
Three Months Ended March 31,
20242023
Numerator:
Net loss(53,471)(49,144)
Denominator:
Weighted average number of ordinary shares - basic and diluted973,145,760 961,444,780 
Net loss per share - basic and diluted(0.05)(0.05)
   
Three Months Ended March 31,
 
   
2021
   
2020
 
Numerator:
                                                
Net loss attributable to ordinary shareholders
   (232,910   (47,988
Denominator:
          
Weighted average number of ordinary shares- basic and diluted
   88,374,928    72,956,538 
           
Net loss per share-basic and diluted
   (2.64   (0.66
           
As a result of the Group’sCompany’s net loss forin the three months ended March 31, 2021first quarter of 2024 and 2020,2023, share options and
non-vested
restricted shares outstanding in the respective periods were excluded from the calculation of diluted loss per share as their inclusion would have been anti-dilutive.
March 31,
20242023
Share options104,244,590 86,242,060 
Non-vested restricted shares29,893,540 32,154,670 
   
As of
 
   
March 31,
2021
   
March 31,

2020
 
Share options
       8,693,274        9,903,396 
Non-vested
restricted shares
   480,010    725,068 
13. Related party transactions
9. Borrowings
The table below sets forthIn February 2024, the major related party and the relationshipCompany entered into certain debt arrangements with the GroupBank of China, SPD Bank, and Ningbo Bank to support its working capital needs in mainland China. The following table presents the Company’s short-term debts as of March 31, 2021:
2024 ($ in thousands):
Weighted average
interest rate per annum
March 31, 2024
Bank of China Working Capital Loan2.95 %34,179 
SPD Bank Working Capital Loan3.45 %14,094 
Total short-term debts3.10 %48,273 
Company Name
Relationship with the Group
MEDx (Suzhou) Translational Medicine Co., Ltd.
(Formerly known as
Qiagen (Suzhou) translational
medicine Co., Ltd)
Significant influence held by Samantha Du’s (Director, Chairwoman and Chief Executive Officer of the Company) immediate family
Bank of China Working Capital Loan Facility
12

TableOn February 5, 2024, the Company entered into an uncommitted facility letter with the Bank of ContentsChina (Hong Kong) Limited (the “BOC HK”) pursuant to which the BOC HK will provide standby letters of credit for loans of up to $100.0 million for a term of one year. In connection with this agreement, the Company paid a one-time, non-refundable fee of $0.7 million. The Company also maintained restricted deposits of $100.0 million, which are presented as restricted cash-current on the condensed consolidated balance sheet, to secure the standby letters of credit. On February 6, 2024, upon the
11


Zai Lab Limited
Notes to the unaudited condensed consolidated financial statements
(In thousandsCompany’s application, the BOC HK provided a standby letter of U.S. dollarscredit in favor of the Bank of China Pudong Development Zone Branch (the “BOC Pudong Branch”) for $50.0 million which are or may become payable by the Company’s wholly-owned subsidiary, Zai Lab (Shanghai) Co., Ltd. (“$”Zai Lab Shanghai”), and Renminbi (“RMB”) exceptZai Lab Shanghai subsequently entered into a working capital loan contract with the BOC Pudong Branch on February 7, 2024 for numbera loan of sharesRMB340.0 million (approximately $47.8 million), of which an aggregate principal amount of RMB242.5 million (approximately $34.2 million) was withdrawn and per share data)
For the three months endedoutstanding as of March 31, 20212024. Each working capital loan withdrawal has a one-year term and 2020,is subject to a floating interest rate of approximately 2.95% initially, and is subject to adjustment every six months.
SPD Bank Working Capital Loan Facility
On February 6, 2024, the Group incurred $103 and $55 research and development expenseCompany entered into a maximum-amount guarantee contract with MEDx (Suzhou) Translational Medicinethe Shanghai Pudong Development Bank Co., Ltd. Zhangjiang Hi-Tech Park Sub-branch (the “SPD Bank”) pursuant to which the Company will guarantee working capital loans of up to RMB300.0 million (approximately $42.0 million) from SPD Bank to Zai Lab Shanghai over a three-year period. In the first quarter of 2024, Zai Lab Shanghai has entered into working capital loan contracts with SPD Bank under this debt facility for product research and development services, respectively. Allan aggregate principal amount of the transactions are carried out with normal businessRMB100.0 million (approximately $14.1 million). These working capital loans have one-year terms and are on arms’ length basis.
subject to a fixed interest rate of 3.45%.
14. Share-based compensationNingbo Bank Working Capital Loan Facility
Share options
On March 5, 2015,February 6, 2024, the BoardCompany’s wholly-owned subsidiary, Zai Lab (Suzhou) Co., Ltd. (“Zai Lab Suzhou”), entered into a maximum credit contract with Bank of DirectorsNingbo Co., Ltd. Suzhou Sub-branch (“Ningbo Bank”) as well as an Electronic Commercial Draft Discounting Master Agreement and Online Working Capital Loan Master Agreement (collectively, the “Ningbo Bank Agreements”). The Ningbo Bank Agreements permit Zai Lab Suzhou to utilize, including through discounting or working capital loan agreements and subject to the terms and conditions in related master agreements, up to RMB230.3 million (approximately $32.4 million), of which the Company approved an Equity Incentive Plan (the “2015 Plan”) which is administered by the Board of Directors. Under the 2015 Plan, the Board of Directors may grant optionsauthorized to purchase ordinary sharesutilize up to management including officers, directors, employees and individual advisors who render services to the Group to purchase an aggregate of no more than 4,140,945 ordinary shares of the Group (“Option Pool”)RMB160.0 million (approximately $22.5 million). Subsequently, the Board of Directors approved the increase in the Option Pool to 7,369,767 ordinary shares.
In connection with the completionarrangements described in the Ningbo Bank Agreements, Zai Lab Suzhou agreed to pledge interests in certain real property it owns in Suzhou. As of March 31, 2024, Zai Lab Suzhou has not entered into any discounting arrangements or working capital loans under this Ningbo Bank working capital loan facility.
10. Other Current Liabilities
The following table presents the initial public offering (the “IPO”), the Board of Directors has approved the 2017 Equity Incentive Plan (the “2017 Plan”)Company’s other current liabilities ($ in thousands):
March 31, 2024December 31, 2023
Accrued payroll11,920 33,711 
Accrued professional service fee3,478 7,520 
Payables for purchase of property and equipment2,481 2,474 
Accrued rebate to distributors20,593 16,926 
Tax payables6,910 16,988 
Other (i)2,794 5,353 
Total48,176 82,972 
(i)Other mainly includes accrued travel and all equity-based awards subsequent to the IPO would be granted under the 2017 Plan.
business-related expenses.
For the three months ended March 31, 2020
, the Group granted 842,500 share options to certain management, employees and individual advisors of the Group at the exercise price ranging from $44.94 to $51.48 per share under the 2017 Plan. These options granted have a contractual term of
ten years
and generally vest over a five or
three-year
period, with 20% or 33.3% of the awards vesting beginning on the anniversary date one year after the grant date.
For the three months ended March 31, 
2021, the Group granted 15,100 share options to certain management and employees of the Group at the exercise
price of
$162.02 per share under the 2017 Plan. These options granted have a contractual term of
ten years
and generally vest over a
five-year
period, with 20% of the awards vesting beginning on the anniversary date one year after the grant date.
The weighted-average grant-date fair value of the options granted in the
three months ended March 31, 
2021 and 2020 were $162.02 and $48.68 per share, respectively. The Group recorded compensation expense related to the options of $5,549 and $4,921 for the three months ended March 31, 2021 and 2020, respectively, which were classified in the
accompanying unaudited condensed 
consolidated statements of operations as follows:
   
Three Months Ended March 31,
 
   
2021
   
2020
 
   
$
   
$
 
Selling, general and administrative
   3,259    2,744 
Research and development
   2,290    2,177 
           
Total
   5,549    4,921 
           
13
12

Zai Lab Limited
Notes to the unaudited condensed consolidated financial statements
11. Share-Based Compensation
(In thousandsDuring the first quarter of U.S. dollars (“$”) and Renminbi (“RMB”) except for number of2024, the Company granted share options to purchase up to 398,000 ordinary shares and perrestricted shares representing 370,500 ordinary shares under the 2022 Plan. The share data)
options granted have a contractual term of ten years. Share options granted since April 2023 generally vest ratably over a four-year period, and share options granted prior to April 2023 generally vest ratably over a five-year period, with 25% or 20% of the awards vesting on each anniversary of the grant date, respectively, subject to continued employment/service with the Company on the vesting date. The restricted shares granted generally vest ratably over a specified period on the anniversary of the grant date, subject to continued employment/service with the Company on the vesting date. For a description of the Company’s equity incentive plans and more details on the terms of the share-based awards, refer to Note 15 of the 2023 Annual Report.
The following table presents the share-based compensation expense that has been reported in the Company’s condensed consolidated statements of operations and comprehensive loss as follows ($ in thousands):
Three Months Ended March 31,
20242023
Selling, general and administrative11,036 10,063 
Research and development6,944 6,598 
Total17,980 16,661 
As of March 31, 2021,2024, there was $67,009 of total unrecognized share-based compensation expense related to unvested share options granted. That cost is expectedand unvested restricted shares of $93.2 million and $92.0 million, respectively, which the Company expects to be recognizedrecognize over a weighted-average period of 1.41
2.89 years which is determined based on the number of shares and unrecognized years.
2.54 years, respectively.
Non-vested
restricted shares
For the three
months ended March 31, 
2020, 50,000 ordinary shares were authorized for grant to the independent directors. The restricted shares will vest12. License and be released from the restrictions in full on the first anniversary from the date of the agreement. Upon termination of the independent directors’ service with the Group for any reason, any shares that are outstanding and not yet vested will be immediately forfeited.
For the three
months ended March 31, 
2020, 12,000 ordinary shares were authorized for grant to certain management. One fifth of the restricted shares will vest and be released from the restrictions on each yearly anniversary from the date of the agreement. Upon termination of the certain management’s service with the Group for any reason, any shares that are outstanding and not yet vested will be immediately forfeited.
For the three
months ended March 31, 
2021, 19,260 ordinary shares were authorized for grant to the independent directors. The restricted shares will vest and be released from the restrictions in full on the first anniversary from the date of the agreement. Upon termination of the independent directors’ service with the Group for any reason, any shares that are outstanding and not yet vested will be immediately forfeited.
For the three
months ended March 31, 
2021, 3,100 ordinary shares were authorized for grant to certain management. One fifth of the restricted shares will vest and be released from the restrictions on each yearly anniversary from the date of the agreement. Upon termination of the certain management’s service
with the Group for any reason, any shares that are outstanding and not yet vested will be immediately forfeited.
Collaboration Agreements
The Group measured the fair value of the
non-vested
restricted shares as of respective grant dates and recognized the amount as compensation expense over the deemed service period using a graded vesting attribution model on a straight-line basis
.
As of March 31, 2021, there was $17,469 of total unrecognized compensation expense related to
non-vested
restricted shares. The Group recorded compensation expense related to the restricted shares
of $
1,769 and $1,542 for the three months ended March 31, 2021 and 2020, respectively, which were classified in the
accompanying unaudited condensed 
consolidated statements of operations as follows:
   
Three Months Ended March 31,
 
   
2021
   
2020
 
   
$
   
$
 
Selling, general and administrative
   1,211    1,068 
Research and development
   558    474 
           
Total
   1,769    1,542 
           
15. Accumulated other comprehensive income (loss)
The movement of accumulated other comprehensive income (loss) is as follows:
Foreign currency

translation adjustments
$
Balance as of December 31, 2020
(14,524
Other comprehensive
income
2,900
Balance as of March 31, 2021
(11,624
14

Zai Lab Limited
Notes to the unaudited condensed consolidated financial statements
(In thousands of U.S. dollars (“$”) and Renminbi (“RMB”) except for number of shares and per share data)
16. Licenses and collaborative arrangement
The following is a description of the Group’s significant ongoing collaboration agreements for the three months ended March 31, 2021.
License and collaboration agreement with Deciphera Pharmaceuticals, LLC (“Deciphera”)
In June 2019, the Group entered into a license agreement with Deciphera, pursuant to which it obtained an exclusive license under certain patents and know-how of Deciphera to develop and commercialize products containing ripretinib in the field of the prevention, prophylaxis, treatment, cure or amelioration of any disease or medical condition in humans in Greater China.
Under the terms of the agreement, the Group paid Deciphera an upfront license fee of $20,000 and 2 milestone payments of $7,000, and accrued for a milestone payments of $5,000. The Group also agreed to pay certain additional development, regulatory and commercial milestone payments up to an aggregate of $173,000,
and certain tiered royalties (from low-to-high teens on a percentage basis and subject to certain reductions) based on the net sales of the licensed products in the territory. 
The Group has the right to terminate this agreement at any time by providing written notice of termination to Deciphera.
15

Zai Lab Limited
Notes to the unaudited condensed consolidated financial statements
(In thousands of U.S. dollars (“$”) and Renminbi (“RMB”) except for number of shares and per share data)
License agreement with Turning Point Therapeutics Inc (“Turning Point”)
In July 2020,
the Group entered into an exclusive license agreement with Turning Point pursuant to which Turning Point exclusively licensed to the Group the rights to develop and commercialize products containing repotrectinib as an active ingredient in all human therapeutic indications, in Greater China.
Under the terms of the agreements, the Group paid an upfront 
payment of $25,000
to Turning Point. Turning Point is also eligible to receive up to 
$151,000
 in development, regulatory and sales milestones. Turning Point will also be eligible to receive certain tiered royalties (from mid-to-high teens on a percentage basis and subject to certain reductions) based on annual net sales of repotrectinib in Greater China. 
The Group has the right to terminate this agreement at any time by providing written notice of termination to Turning Point.
In January 2021, the Group entered into a license agreement with Turning Point, which expanded their collaboration. Under the terms of the new agreement, the Group obtained exclusive rights to develop and commercialize TPX-0022, Turning Point’s MET, SRC and CSF1R inhibitor, in Greater China.
The Group paid an upfront license fee in the amount of $25,000 to Turning Point. The Group also agreed to pay certain development, regulatory and commercial milestone payments up to an aggregate of $336,000.
 Turning Point will also be eligible to receive certain tiered royalties (from mid-teens to low-twenties on a percentage basis and subject to certain reductions) based on annual net sales of TPX-0022 in Greater China. In addition, Turning Point will have the right of first negotiation to develop and commercialize an oncology product candidate discovered by the Group. 
16

Zai Lab Limited
Notes to the unaudited condensed consolidated financial statements
(In thousands of U.S. dollars (“$”) and Renminbi (“RMB”) except for number of shares and per share data)
License and collaboration agreement with Five Prime Therapeutics, Inc. (“Five Prime”)
In December 2017,
the Group entered into a license and collaboration agreement with Five Prime (a company later acquired by Amgen Inc.), pursuant to which it obtained an exclusive license under certain patents and know-how of Five Prime to develop and commercialize products containing Five Prime’s proprietary afucosylated FGFR2b antibody known as bemarituzumab (FPA144) as an active ingredient in the treatment or prevention of any disease or condition in humans in Greater China. 
Under the terms of the agreement, the Group made an upfront payment of
 $5,000
and a milestone payment of $
2,000
to Five
Prime. Additionally, the Group also agreed to pay further development and regulatory milestone payments of up to an aggregate
of
$37,000
to Five Prime
and certain tiered royalties (from high-teens to low-twenties on a percentage basis and subject to certain reductions) based on the number of patients the Group enrolls in the bemarituzumab study.
The Group has the right to terminate this agreement at any time by providing written notice of termination to Five Prime.
17

Zai Lab Limited
Notes to the unaudited condensed consolidated financial statements
(In thousands of U.S. dollars (“$”) and Renminbi (“RMB”) except for number of shares and per share data)
License agreement with Cullinan Pearl Corp. (“Cullinan”)
In December 2020,
the Group entered into a license agreement with Cullinan, a subsidiary of Cullinan Management, Inc., formerly Cullinan Oncology, LLC, pursuant to which it obtained an exclusive license under certain patents and
know-how
of Cullinan to develop, manufacture and commercialize products containing
CLN-081
as an active ingredient in all uses in humans and animals in Greater China
.
Under the terms of the agreement, the Group paid an upfront payment
of $20,000 to
Cullinan. Cullinan is also eligible to receive up
 to $211,000
in development, regulatory and sales-based milestone payments. Cullinan is also eligible to receive certain tiered royalties (from high-single-digit to
low-teen
tiered royalties on a percentage basis and subject to certain reductions) based on annual net sales of
CLN-081
in Greater China.
The Group has the right to terminate this agreement at any time by providing written notice of termination to Cullinan.
License agreement with Takeda Pharmaceutical Company Limited (“Takeda”)
In December 2020, the Group entered into an exclusive license agreement with Takeda. Under the terms of the license agreement, Takeda exclusively licensed to the Group the right to exploit products in the licensed field during the term.
Under the terms of the agreement, the Group paid an upfront payment
of $6,000 t
o
Takeda. Takeda is also eligible to receive up
to $481,500 in development,
 regulatory and sales-based milestone payments. Takeda is also eligible to receive certain tiered royalties (from high-single-digit to
low-teen
tiered royalties on a percentage basis and subject to certain reductions) based on net sales of each product sold by selling party during each year of the applicable royalty term.
The Group has the right to terminate this agreement at any time by providing written notice of termination to Takeda.
Collaboration and license agreement with argenx BV (“argenx”)
In January 2021, the Group entered into a collaboration and license agreement with argenx. The Group received an exclusive license to develop and commercialize products containing argenx’s proprietary antibody fragment, known as efgartigimod, in Greater China. The Group is responsible for the development of the licensed compound and licensed product, and will have the right to commercialize such licensed product in the territory.
1
8

Zai Lab Limited
Notes to the unaudited condensed consolidated financial statements
(In thousands of U.S. dollars (“$”) and Renminbi (“RMB”) except for number of shares and per share data)
Pursuant to the collaboration and license agreement, a share issuance agreement was entered into between the Group and argenx. As the upfront payment to argenx, the Group issued
568,182 ordinary shares of the Company to argenx with par value $0.00006 per share on the closing date of January 13, 2021. In determining the fair value of the ordinary shares at closing, the Company considered the closing price of the ordinary shares on the closing date and included a lack of marketability discount because the shares are subject to certain restrictions. The fair value of the shares on the closing date was determined to be $62,250 in the aggregate. The Group recorded this upfront payment in research and development expenses.
In addition, the Group made a
non-creditable,
non-refundable
development cost-sharing payment of $75,000 to argenx. Argenx is also eligible to receive a cash payment of $25,000
upon the first regulatory approval of a licensed product by the U.S. Food and Drug Administration for myasthenia gravis and tiered royalties (from mid-teen to low-twenties on a percentage basis and subject to certain reductions) based on annual net sales of all licensed product in the territory. 
Full details of the licenses and collaborative arrangements are included in our Annual Report on Form 10-K for the year ended December 31, 2020 as filed with the SEC on March 1, 2021. As noted above, the Group has entered into various license and collaboration agreements with third party licensorsparties to develop and commercialize product candidates. Based on
For a description of the material terms of thesethe Company’s significant license and collaboration agreements, the Group is contingently obligated to make additional material payments upon the achievement of certain contractually defined milestones. Based on management’s evaluationsee Note 16 of the progress2023 Annual Report. In the first quarter of each project noted above,2024, the licensors will be eligible to receive fromCompany did not enter into any new significant license and collaboration agreements or incur any milestone fees under our existing significant license and collaboration agreements.
13. Other Income, Net
The following table presents the Group up to an aggregate of approximately
Company’s other income, net ($ in thousands):
 $
2,871,396
in future milestone payments upon the achievement of contractually specified development milestones, such as regulatory approval for the product candidates, which may be before the Group has commercialized the product or received any revenue from sales of such product candidate, which may never occur
.
Three Months Ended March 31,
20242023
Government grants2,791 — 
Gain on equity investments with readily determinable fair value4,889 441 
Others miscellaneous gain1,681 793 
Total9,361 1,234 
17.14. Restricted net assetsNet Assets
The Group’sCompany’s ability to pay dividends may depend on the GroupCompany receiving distributions of funds from its Chinese subsidiary.subsidiaries. Relevant PRC statutoryChinese laws and regulations permit payments of dividends by the Group’s PRC subsidiaryCompany’s Chinese subsidiaries only out of its retained earnings, if any, as determined in accordance with PRCChinese accounting standards and
regulations. The results of operations reflected in the unaudited condensed consolidated financial statements prepared in accordance with U.S. GAAP differ from those reflected in the statutory financial statements of the Group’s PRC subsidiary.Company’s Chinese subsidiaries.
In accordance with the Company Law of the PRC,People’s Republic of China, a domestic enterprise is required to provide statutory reserves of at least
10% of its annual
after-tax
profit until such reserve has reached 50%
of its respective registered capital based on the enterprise’s PRCChinese statutory accounts. A domestic enterprise is also required tomay provide discretionary surplus reserve, at the discretion of the Board of Directors, from the profits determined in accordance with the enterprise’s PRCChinese statutory accounts. The aforementioned reserves can only be used for specific purposes and are not distributable as cash dividends. The Group’sCompany’s Chinese subsidiary wassubsidiaries were established as domestic invested enterpriseenterprises and therefore isare subject to the above-mentioned restrictions on distributable profits.
During the three months ended March 31, 2021 and 2020, 0
No appropriation to statutory reserves was made in the first quarter of 2024 and 2023 because the Chinese subsidiarysubsidiaries had substantial losses during such periods.
As a result of these PRCChinese laws and regulations, subject to the limitlimits discussed above that require annual appropriations of 10% of
after-tax
income profit to be set aside, prior to payment of dividends, as a general reserve fund, the Group’sCompany’s Chinese subsidiary issubsidiaries are restricted in their ability to transfer out a portion of their net assets to the Group.assets.
Foreign exchange and other regulation in mainland China may further restrict the Group’s Chinese subsidiaryCompany’s subsidiaries in mainland China from transferring out funds to the Group in the form of dividends, loans, and advances. As of March 31, 20212024 and December 31, 2020,2023, amounts restricted arewere the paid-in capital of the Group’s ChineseCompany’s subsidiaries in mainland China, which both amounted to
 $306,010 and $205,858
,
respectively
.
$506.0 million.
18.15. Commitments and Contingencies
(a) Purchase commitments
Commitments
As of March 31, 2021, the Group’sThe Company’s commitments related to purchase of property and equipment contracted but not yet reflected in the unaudited condensed consolidated financial statementstatements were $16,991$1.1 million as of March 31, 2024 and $5,507 which arewere expected to be incurred within one yearyear.
(b) Legal Proceedings
The Company is not currently a party to any material legal proceedings.
(c) Indemnifications
In the normal course of business, the Company enters into agreements that indemnify others for certain liabilities that may arise in connection with a transaction or certain events and within oneactivities. To date, the Company has not paid any claims or been required to two years, respectively.
defend any action related to its indemnification obligations.
19
13

Zai Lab Limited
Notes to the unaudited condensed consolidated financial statements
(In thousands of U.S. dollars (“$”) and Renminbi (“RMB”) except for number of shares and per share data)
(b) Contingencies
The Group is a party to or assignee of license and collaboration agreements that may require it to make future payments relating to milestone fees and royalties on future sales of licensed products (Note 16).
19. Subsequent Event
In April 2021, the Company closed an underwritten public offering of 4,776,000 American depositary shares (“ADSs”) at a price of $150.00 per ADS and 224,000 ordinary shares at a price of HK$1,164.20 per ordinary share. In addition, the underwriters fully exercised their option to purchase an additional 716,400 ADSs at the public offering price. Total proceeds, net of underwriting fees and offering expenses, were approximately $818,052.
In April 2021, the Group granted 479,363 share options to certain management and employees of the Group at the exercise
price of
 $130.96 per share under the 2017 Plan. These options granted have a contractual term of ten years and generally vest over a five-year
period, with 20% of the awards vesting beginning on the anniversary date one year after the grant date.
In April 2021, 188,150 ordinary shares were authorized for grant to certain management and employees of t
he Group.
One-fifth
of the re
stricted shares will vest and be released from the restrictions on each yearly anniversary from the date of the agreement. Upon termination of the certain management’s service with the Group for any reason, any shares that are outstanding and not yet vested will be immediately forfeited.
20

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations
You should read the following discussion and analysis of our financial condition and results of operations together with our 2023 Annual Report and our unaudited condensed consolidated financial statements and the accompanying notes for the first quarter of 2024 included in Item 1. Financial Statements.
Overview
We are a commercial stage,patient-focused, innovative, commercial-stage, global biopharmaceutical company with a substantial presence in both Greater China and the United States. We are focused on discovering, developing, and commercializing innovative products that targetaddress medical conditions with significant unmet needs affecting patients in China and worldwide, particularly in the areas of oncology, autoimmune disorders, infectious disease, and infectious diseases. As of May 10, 2021, weneuroscience. We intend to leverage our competencies and resources to positively impact human health in Greater China and worldwide. We currently have three commercializedfive commercial products – ZEJULA®, OPTUNE, QINLOCK®, NUZYRA®, and VYVGART® that have received marketing approval and eleventhat we have commercially launched in one or more territories in Greater China. OPTUNE refers to Tumor Treating Fields devices marketed under various brand names, including OPTUNE GIO® for glioblastoma multiforme (“GBM”). We also have multiple programs in late-stage product development.development and a number of ongoing pivotal trials across our portfolio.
Since our inception, we have incurred net losses and negative cash flows from our operations. Substantially all of our losses have resulted from funding our research and development programs and selling, general and administrative costs associated with our operations. Developing high quality product candidates requires a significant investment related toin our research and development activities over a prolonged period of time, and a core part of our strategy is to continue making sustained investments in this area. Our ability to generate profits and to generate positive cash flow from operations over the next several years depends upon our ability to successfully market our current three commercial products ZEJULA, Optune and QINLOCK
®
,to successfully expand the indications for these products and develop and commercialize our other product candidates thatcandidates. As discussed further below, we are able to successfully commercialize. We expect to continue to incur substantial expensescosts related to our research and development activities. In particular, our licensing and collaboration agreements require us to make upfront payments upon our entry into such agreements and milestone payments upon the achievement of certain development, regulatory and commercial milestones as well as tiered royalties based on the net sales of the licensed products. These upfront payments and milestone payments upon the achievement of certain development and regulatory milestones are recorded in research and development expense in our consolidated financial statements and totaled $171.3 million for the three months ended March 31, 2021. In addition, we expect to incur substantial costs related to the commercialization of our product candidates, in particular during the early launch phase.
activities.
Furthermore, asAs we pursue our strategy of growth and development,corporate strategic goals, we anticipate that our financial results will fluctuate from quarter to quarter based uponand year to year depending in part on the balance between the successful marketingsuccess of our commercial products and the level of our significant research and development expenses. We cannot predict whether or when new products or new indications for marketed productsour product candidates will receive regulatory approval. Further, if we receive such regulatory approval, we cannot predict whether or if any such approval is received, whetherwhen we willmay be able to successfully commercialize such product(s) andproduct or whether or when theysuch product may become profitable.
21

Recent Developments
Commercial Products
Recent Business Developments
In January 2021, we entered intoNet product revenue was $87.1 million for the first quarter of 2024, an exclusive development and commercialization agreement with argenx, a global immunology company, for efgartigimod in Greater China. Pursuantincrease of 39% compared to the terms ofprior year period, primarily driven by increased sales volume including from VYVGART, our fifth commercial product that was launched in September 2023. We are expanding access to our products, such as through National Reimbursement Drug List (“NRDL”) listings and inclusions in hospital formularies as well as through supplemental insurance coverage. We are also enhancing brand awareness through outreach efforts.
Product Candidates
We continued to advance our product candidates through our research and development activities, including the agreement, we have agreedfollowing developments with respect to fund and undertake allour clinical developmenttrials and regulatory submissions in the territories, participate in certain global studies, and plan to launch and commercialize the licensed product once approved. argenx received a $75.0 million (before a lack of marketability discount) upfront payment in the form of 568,182 newly issued our ordinary shares calculated at a price of $132.00 per share, and received $75.0 million as a guaranteed
non-creditable,approvals:
non-refundable
development cost-sharing payment, and will receive an additional $25.0 million milestone payment upon approval of efgartigimod in the United States. argenx is also eligible to receive tiered
royalties (mid-teen to low-twenties on
a percentage basis) based on annual net sales of efgartigimod in the licensed territories.Oncology
In addition, in January 2021, we entered into an exclusive development and commercialization agreement with Turning Point for
TPX-0022,
its MET, SRC and CSF1R inhibitor, in Greater China. Turning Point received a $25.0 million upfront payment, and will receive up to approximately $336.0 million in potential development, regulatory and sales-based milestone payments. Turning Point will also be eligible to receive tiered royalties
(mid-teen-
to
low-twenties
on a percentage basis) based on annual net sales of
TPX-0022
in the licensed territories.
Tumor Treating Fields: In March 2021, we received approval from2024, our partner NovoCure Limited (“NovoCure”) announced that the China National Medical Products Administration (NMPA)Phase III METIS clinical trial met its primary endpoint, demonstrating a statistically significant improvement in time to intracranial progression for our New Drug Application for QINLOCK for the treatment of adult patients treated with advanced gastrointestinal stromal tumors who have received prior treatment with three or more kinase inhibitors, including imatinib.
In April 2021, we successfully completed a global
follow-on
offering of our American Depositary SharesTumor Treating Fields therapy and ordinary shares and raised approximately $857.5 million, not including underwriting discounts and commissions and other offering expenses.
Recent Regulatory Developments
PRC Medical Device Regulations
The sale and marketing of imported medical device productssupportive care compared to supportive care alone in China are subject to notifications (for Class I devices) or registrations (for Class II and III devices) with the NMPA. We launched Optune in China in June 2020 after the NMPA approved Optune in May 2020 in combination with temozolomide for the treatment of patients with newly diagnosed GBM1-10 brain metastases from non-small cell lung cancer (“NSCLC”) following stereotactic radiosurgery. The METIS trial
14


demonstrated 21.9 months median time to intracranial progression for patients treated with Tumor Treating Fields and also as a monotherapysupportive care compared to 11.3 months for patients treated with supportive care alone. We are participating in the METIS trial.
Tisotumab Vedotin: In April 2024, our partner Pfizer Inc. and Genmab A/S announced that the U.S. Food and Drug Administration approved the supplemental Biologics License Application granting full approval for tisotumab vedotin (or TIVDAK®) for the treatment of patients with recurrent GBM. Optune is regulatedor metastatic cervical cancer with disease progression on or after chemotherapy. We are participating in the global Phase III innovaTV 301 trial and extension study in Greater China.
Adagrasib: We are evaluating the clinical data of the global Phase III KRYSTAL-12 study evaluating adagrasib in previously treated patients with KRASG12C-mutated NSCLC as we decide on next steps in the development of this product across indications.
Early-Stage Global Oncology Pipeline: We are currently enrolling patients in the United States and Greater China in the global Phase I study of ZL-1310 (DLL3 ADC) for relapsed and refractory second-line small cell lung cancer who have progressed after platinum-based treatment. We are also enrolling patients in the United States, Europe, and Greater China in the global Phase I study of ZL-1218 (CCR8) as a Class III imported medical devicesingle agent and in China,combination with pembrolizumab in patients with advanced solid tumor malignancies.
Autoimmune Disorders, Infectious Disease, and Neuroscience
Efgartigimod: In April 2024, we act as the Chinese legal agent for our collaboration partner, Novocure, who is the foreign marketing authorization holder (MAH) for Optune in China. We are preparing to submitsubmitted a supplemental Biologics License Application to the NMPA a Marketing Authorization Application for Optune Luaefgartigimod alfa injection (subcutaneous injection) (“efgartigimod SC”) for the treatment of unresectable, locally advanced or metastatic malignant pleural mesothelioma.
patients with chronic inflammatory demyelinating polyneuropathy (“CIDP”).
The Chinese State Council passedXanomeline-Trospium (KarXT): In April 2024, our partner Bristol Myers Squibb (“BMS”) presented new Medical Device Regulations (State Council Order #739), or Order #739, to replaceinterim long-term data from the existing Medical Device Regulations (State Council Order #680), or Order #680. Order #739Phase III EMERGENT program for the treatment of schizophrenia. In the new interim analysis of long-term efficacy data from the Phase 3 EMERGENT-4 open-label extension trial, KarXT was recently published by the National Medical Products Administration (NMPA)associated with significant improvement in symptoms of schizophrenia across all efficacy measures at 52 weeks, and will become effective on June 1, 2021. Order #739 largely follows the legislative structure of Order #680. We, as the Chinese legal agent for Optune in China, are subject to the statutory compliance requirements under Order #680 and will be subject to similar requirements under Order #739. The following updates from Order #739 we believe are the most relevant to our compliance obligations and our business operations in China:
Chinese legal agent
. Under Order #739, foreign device MAHs will still need to appoint a Chinese legal entity to submit regulatory applications and correspond with regulatory authorities. Nevertheless, the local appointees may only need to play a secondary role to assist the foreign device MAHs in the performance of compliance obligations under Order #739.
Liabilities for non-compliance
. Order #739 significantly increases MAH’s liabilities for non-compliance. Order #739 also introduces personal liability on the legal representatives, main responsible persons, directly responsible supervisors or other personnel of MAHs. While Order #680 does not differentiate the liability of local legal agentsnew pooled interim long-term safety and metabolic outcomes from the foreign device MAHs, Order #739 makes it clear that local appointeesPhase III EMERGENT-4 and EMERGENT-5 trials, KarXT demonstrated a favorable long-term metabolic profile where most patients experienced stability or improvements on metabolic parameters over 52 weeks of treatment. We are conducting a registrational bridging study in mainland China.
Corporate Updates
In April 2024, Andrew Zhu joined Zai Lab as our Chief Commercial Officer in Greater China. Mr. Zhu’s rich experience in building innovative business models and resource integration will assume a lesser degree of liability compared to the foreign device MAHs. If local appointees fail to perform the statutory responsibilitieshelp us further enhance our commercial operations and obligations on behalf of the MAHs, they will be subject to administrative fines up to RMB 0.5 million,drive sales and their responsible personnel will only be subject to a five-year debarment. In comparison, foreign MAHs who refuse to fulfill the administrative penalties can result in a ten-year import ban.
MAH system
. The MAH system will be rolled out nationwide. MAHs will beprofit growth across Greater China. He joins us from Simcere Zaiming, where he most recently served as Chief Operating Officer responsible for the safetycommercial and effectiveness of their products during the entire product life cycle. They must establish a quality management systempharmaceutical business. He previously served in various operational, sales, and ensure its effectiveness, definemarketing leadership roles at leading global biopharmaceutical companies, including AstraZeneca, Roche, Sanofi, and implement a post-approval study and risk control plan, conduct adverse event monitoring and re-evaluation, establish and implement the product tracing and recall system, and fulfill other statutory obligations imposed by the NMPA.
BMS.
Clinical evidence
. The NMPA will allow versatile clinical evidence to demonstrate product safety and effectiveness. Such evaluation can be based on clinical study data or analysis of clinical literature and clinical data on predicate devices.
Expanded access
. Expanded access to investigational devices will be made available for patients in the study sites upon ethics committee approval and the patients’ giving informed consent, provided that the investigational devices are used for critical, life-threatening diseases without an effective treatment method and can confer clinical benefits on patients based on medical judgment.
22

PRC Biosecurity Law
On April 15, 2021, the PRC Biosecurity Law took effect.
Factors Affecting ourOur Results of Operations
Our Commercial Products
We generate product revenue through the sale of our commercial products in Greater China, net of any related sales returns and rebates to distributors. Our cost of sales mainly consists of the costs of manufacturing ZEJULA and NUZYRA, costs of purchasing OPTUNE, QINLOCK, and VYVGART from our collaboration partners, any royalty fees incurred as a result of sales of our commercial products under our license and collaboration agreements, and amortization of any sales-based milestone fees incurred under our license and collaboration agreements. We expect our revenue to increase in coming years as we continue to focus on increasing patient access to our existing commercial products, such as through NRDL listing or increased supplemental insurance coverage in the private-pay market. For example, in the first quarter of
15


2023, QINLOCK for fourth-line GIST and NUZYRA for the IV treatment of adult patients with CABP and ABSSSI were added to the NRDL. In the first quarter of 2024, VYVGART (efgartigimod alfa injection) for gMG and NUZYRA for the oral treatment of adult patients with CABP and ABSSSI were added to the NRDL. We also expect revenue to increase in coming years as a result of our launch of additional commercial products, if and when we obtain required regulatory approvals. We expect our cost of sales to increase as the volume of products sold increases.
Research and Development Expenses
We believe our ability to successfully develop product candidates will be the primary factor affecting our long-term competitiveness, as well as our future growth and development. Developing high quality product candidates requires a significant investment of resources over a prolonged period of time,time. We are committed to advancing and expanding our pipeline of potential best-in-class and first-in-class products, such as through clinical and pre-clinical trials and business development activities. As a core part of our strategy isresult, we expect to continue making sustainedsignificant investments in this area. As a result of this commitment, our pipeline of product candidates has been steadily advancing and expanding, with eleven late-stage clinical product candidates being investigated.
To date, we have financed our activities primarily through private placements, our initial public offering in September 2017, a secondary listing on the Stock Exchange of Hong Kong and multiple follow-on offerings. Through March 31, 2021, we have raised approximately $164.6 million in private equity financing and approximately $1,644.6 million in net proceeds after deducting underwriting commissions and the offering expenses payable by us in our initial public offering, our secondary listing and our follow-on offerings. Our operations have consumed substantial amounts of cash since inception. The net cash used in our operating activities was $169.5 million and $39.8 million, for the three months ended March 31, 2021 and March 31, 2020, respectively. We expect our expenditures to increase significantly in connection with our ongoing activities, particularly as we advance the clinical development of our eleven late-stage clinical product candidates and continue research and development, including internal discovery activities.
Elements of our clinicalresearch and pre-clinical-stage product candidatesdevelopment expenditures primarily include:
payroll and initiate additionalother related costs of personnel engaged in research and development activities;
in-licensed patent rights fees of exclusive development rights of products granted to the Company;
costs related to pre-clinical testing of the Company’s technologies and clinical trials, of, and seek regulatory approval for, these and other future product candidates. These expenditures include:
expenses incurred forsuch as payments to CROs,contract research organizations (“CROs”) and contract manufacturing organizations (“CMOs”), investigators, and clinical trial sites that conduct our clinical studies;
and
employee compensation related expenses,costs to produce the product candidates, including salaries, benefitsraw materials and equity compensation expense;
expenses for licensors;
the cost of acquiring, developing and manufacturing clinical study materials;
facilities,supplies, product testing, depreciation, and other expenses, which include office leases and other overhead expenses;
facility-related expenses.
costs associated with pre-clinical activities and regulatory operations;
expenses associated with the construction and maintenance of our manufacturing facilities; and
costs associated with operating as a public company.
Selling, General, and Administrative Expenses
Our selling, general, and administrative expenses consist primarily of personnel compensation and related costs, including share-based compensation for commercial and administrative personnel. Other selling, general, and administrative expenses include product distribution and promotion costs, and professional service fees for legal, intellectual property, consulting, auditing, and tax services as well as other direct and allocated expenses for rent and maintenance of facilities, insurance, and other supplies used in selling, general, and administrative activities. We anticipate that our selling, general and administrative expenses will increase in future periodsexpect these costs to continue to be significant to support increases insales of our commercial and research and development activities and as we continue to commercialize, develop, and manufacture our products and assets. These increases will likely include increased headcount, increased share compensation charges, increasedpreparation to launch and subsequent sales of additional product distributioncandidates if and promotion costs, expanded infrastructure and increased costs for insurance. We also incur increased legal, compliance, accounting and investor and public relations expenses associated with being a public company.
23
when approved.

Our Ability to Commercialize Our Product Candidates
As of March 31, 2021, eleven of ourWe have multiple product candidates are in late-stage clinical development and various others are in clinical and pre-clinical development in Greater China and the United States. Our ability to generate revenue from our product candidates is dependent on theirour receipt of regulatory approvalapprovals for and successful commercialization of such products,product candidates, which may nevernot occur. Certain of our product candidates may require additional pre-clinical and/or clinical development, regulatory approvalapprovals in multiple jurisdictions, manufacturing supply, substantial investment and significant marketing efforts before we generate any revenue from product sales.
Our License and Collaboration Arrangements
Our results of operations have been, and we expect them towill continue to be, affected by our licensing,license and collaboration and development agreements. We areIn accordance with these agreements, we may be required to make upfront payments upon our entry into such agreements and milestone payments upon the achievement of certain development, regulatory, and commercialsales-based milestones for the relevant product under these agreementsproducts as well as certain royalties at tiered royaltiespercentage rates based on theannual net sales of the licensed products. These upfront payments and milestone payments uponproducts in the achievementlicensed territories. As of certainMarch 31, 2024, we may be required to pay development and regulatory milestones are recorded in research and development expense in our unaudited condensed consolidated financial statements and totaled $171.3 million and $9.2milestone payments of up to an additional aggregate amount of $303.5 million for our current clinical programs and $665.2 million for other programs that are contingent on the three months endedprogress of our product candidates prior to commercialization. As of March 31, 2021 and 2020, respectively.
2024, we also may be
Key Components of Results of Operations16

Taxation

Cayman Islands
Zai Lab Limited is incorporated in the Cayman Islands. The Cayman Islands currently levies no taxes on profits, income, gains or appreciation earned by individuals or corporations. In addition, our paymentrequired to pay sales-based milestone payments of dividends, if any, is not subject to withholding tax in the Cayman Islands. For more information, see “Taxation—Material Cayman Islands Taxation” in our Annual Report on Form 10-K for the year ended December 31, 2020.
People’s Republic of China
Our subsidiaries incorporated in China are governed by the EIT Law and regulations. Under the EIT Law, the standard EIT rate is 25% on taxable profits as reduced by available tax losses. Tax losses may be carried forward to offset any taxable profits for up to following five years. For more information, see “Taxation—Material People’s Republican additional aggregate amount of China Taxation” in our Annual Report$2,457.5 million as well as certain royalties at tiered percentage rates on Form 10-K forannual net sales that are contingent on product performance. If these milestones or royalties do occur, we view related payments as favorable because such payments signify that the year ended December 31, 2020.
product or product candidate is achieving higher sales levels or advancing toward potential commercial launch.
Hong Kong
Our subsidiaries incorporated in Hong Kong are subject to
two-tiered
tax rates for the three months ended March 31, 2021 and 2020 on assessable profits earned in Hong Kong where the profits tax rate for the first HK$2 million of assessable profits is subject to profits tax rate of 8.25% and the assessable profits above HK$2 million is subject to profits tax rate of 16.5%. Our subsidiaries incorporated in Hong Kong did not have assessable profit for the three months ended March 31, 2021 and 2020.
Results of Operations
The following table sets forth a summary ofpresents our consolidated results of operations for($ in thousands):
Three Months Ended March 31,Change
20242023$%
Revenue87,149 62,797 24,352 39 %
Expenses
Cost of sales(33,619)(21,337)(12,282)58 %
Research and development(54,645)(48,472)(6,173)13 %
Selling, general, and administrative(69,194)(62,510)(6,684)11 %
Loss from operations(70,309)(69,522)(787)%
Interest income9,658 10,232 (574)(6)%
Interest expenses(113)— (113)NM
Foreign currency (losses) gains(2,068)8,912 (10,980)(123)%
Other income, net9,361 1,234 8,127 659 %
Loss before income tax(53,471)(49,144)(4,327)%
Income tax expense— — — — %
Net loss(53,471)(49,144)(4,327)%
NM - Not Meaningful
Revenue
The following table presents the periods indicated. This information should be read together with our unaudited condensed consolidated financial statements and related notes included elsewhere in this Quarterly Report. Our operating results in any period are not necessarily indicativecomponents of the results that may be expected for any future period.
Company’s product revenue ($ in thousands):
Three Months Ended March 31,Change
20242023$%
Product revenue - gross93,112 71,212 21,900 31 %
Less: Rebates and sales returns(5,963)(8,415)2,452 (29)%
Product revenue - net87,149 62,797 24,352 39 %
(in thousands, except share and per share data)
  
Three months ended March 31,
 
  
2021
  
2020
 
Comprehensive Loss Data:
         
Revenue
  $20,103  $8,218 
Expenses:
         
Cost of sales
   (7,505  (2,084
Research and development
   (203,852  (33,742
Selling, general and administrative
   (35,838  (18,714
          
Loss from operations
  $(227,092 $(46,322
Interest income
   214   1,655 
Interest expenses
   —     (59
Other expense, net
   (6,227  (3,125
          
Loss before income tax and share of loss from equity method investment
  $(233,105 $(47,851
Income tax expense
   —     —   
Share of gain (loss) from equity method investment
   195   (137
          
Net loss attributable to ordinary shareholders
  $(232,910 $(47,988
Weighted-average shares used in calculating net loss per ordinary share, basic and diluted
   88,374,928   72,956,538 
Net loss per share, basic and diluted
  $(2.64 $(0.66
24

Three Months Ended March 31, 2021 Compared to Three Months Ended March 31, 2020
Revenue
Our product revenue is primarily derived from the salesales of ZEJULAour commercial products primarily in mainland China, net of sales returns and Optunerebates to distributors with respect to the sales of these products.
Our net product revenue increased by $24.4 million in Chinathe first quarter of 2024 primarily driven by increased sales volumes, the launch of VYVGART, and Hong Kong. The amountdecreased sales rebates to distributors resulting from price reductions in connection with NRDL listings for certain products. In terms of revenue growth by product, ZEJULA, which was renewed with NRDL as a maintenance treatment in the first quarter of ZEJULA2024, continued being the leading PARP inhibitor in hospital sales for ovarian cancer in mainland China; VYVGART for gMG was commercially launched in mainland China in September 2023 and was included in the three months ended March 31, 2021, was adjustedNRDL in the first quarter of 2024; increased sales for QINLOCK were supported by its inclusion in the NRDL in the first quarter of 2023; and increased sales for NUZYRA were supported by the normal processinclusion in China to compensate distributorsthe NRDL for products recently sold at prices priorits IV formulation in the first quarter of 2023 and for its oral formulation in the first quarter of 2024. Although revenue declined for OPTUNE, it increased compared to the National Reimbursement Drug List (“NRDL”) implementation. fourth quarter of 2023 as patient volume recovered.
17


In the first quarter of 2023, our sales rebates to distributors resulting from price reductions in connection with NRDL listings was $3.9 million, which was driven by price reductions for QINLOCK and NUZYRA in connection with their NRDL listings in the first quarter of 2023. Such sales rebates were immaterial in the first quarter of 2024.
The following table disaggregatespresents net revenue by product for($ in thousands):
Three Months Ended March 31,Change
20242023$%
ZEJULA45,501 42,680 2,821 %
OPTUNE12,480 13,342 (862)(6)%
QINLOCK6,093 1,306 4,787 367 %
NUZYRA9,913 5,469 4,444 81 %
VYVGART13,162 — 13,162 NM
Total product revenue, net87,149 62,797 24,352 39 %
NM - Not Meaningful
Cost of Sales
Cost of sales increased by $12.3 million to $33.6 million in the three months ended March 31, 2021first quarter of 2024, primarily due to increasing sales volumes and 2020:shifts in product sales mix.
(in thousands)
  
Three months ended March 31,
 
  
      2021      
   
%
   
      2020      
   
%
 
ZEJULA
  $12,606    62.7   $6,345    77.2 
Optune
   7,130    35.5    1,873    22.8 
Others
   367    1.8    —      —   
                     
Total product revenue—Net
  $20,103    100.0   $8,218    100.0 
                     
Research and Development Expenses
The following table sets forthpresents the components of our research and development expenses for the periods indicated.
($ in thousands):
Three Months Ended March 31,Change
20242023$%
Personnel compensation and related costs28,008 28,655 (647)(2)%
Licensing fees— 1,000 (1,000)(100)%
CROs/CMOs/Investigators expenses19,904 12,439 7,465 60 %
Other costs6,733 6,378 355 %
Total54,645 48,472 6,173 13 %
(in thousands)
  
Three months ended March 31,
 
  
      2021      
   
%
   
      2020      
   
%
 
Research and development expenses:
                    
Personnel compensation and related costs
  $12,697    6.2   $10,004    29.6 
Licensing fees
   171,282    84.0    9,240    27.4 
Payment to CROs/CMOs/Investigators
   15,526    7.6    9,830    29.1 
Other costs
   4,347    2.2    4,668    13.9 
                     
Total
  $203,852    100.0   $33,742    100.0 
                     
Research and development expenses increased by $170.2$6.2 million in the first quarter of 2024, primarily due to:
an increase of $7.5 million in CROs/CMOs/Investigators expenses related to $203.9newly initiated studies and progress of existing studies; partially offset by
a decrease of $1.0 million for the three months ended March 31, 2021 from $33.7 million for the three months ended March 31, 2020. The increase in research and development expenses included the following:
$2.7 million for increased personnel compensation and related costs which was primarily attributable to increased employee compensation costs, due to hiring of more personnel during the three months ended March 31, 2021 and the grants of new share options and vesting of restricted shares to certain employees;
$162.0 million for increased licensing fees in connection with the upfront paymentsdecreased development milestone fees for new licensing agreements as well as certain milestone fees;
$5.7 million for increased payment to CROs, CMOsour license and investigators in the three months ended March 31, 2021 as we advanced our drug candidate pipeline; andcollaboration agreements.
The following table summarizespresents our research and development expenses by program for the three months ended March 31, 2021 and 2020, respectively:
($ in thousands):
(in thousands)
  
Three months ended March 31,
 
      2021      
   
%
   
      2020      
   
%
 
Research and development expenses:
            
Three Months Ended March 31,
Three Months Ended March 31,
Three Months Ended March 31,
2024
2024
2024
Clinical programs
Clinical programs
Clinical programs
  $186,256    91.4   $20,332    60.3 
Pre-clinical
programs
   2,500    1.2    688    2.0 
Pre-clinical programs
Pre-clinical programs
Unallocated research and development expenses
   15,096    7.4    12,722    37.7 
                
Unallocated research and development expenses
Unallocated research and development expenses
Total
  $203,852    100.0   $33,742    100.0 
                
Total
Total
During the three months ended March 31, 2021, 91.4% and 1.2% of our total researchResearch and development expenses were attributable to clinical programs and
pre-clinical
programs, respectively. Duringincreased by $6.3 million in the three months ended March 31, 2020, 60.3%first quarter of 2024 primarily driven by increased CROs/CMOs/Investigators expenses related to newly initiated studies and 2.0%progress of our total research
18


existing studies. Research and development expenses were attributable to clinicalpre-clinical programs decreased by $0.4 million in the first quarter of 2024 primarily due to a decrease in milestone fees for our license and collaboration agreements.
pre-clinical
programs, respectively. Although we manage our external research and development expenses by program, we do not allocate our internal research and development expenses by program because our employees and internal resources may be engaged in projects for multiple programs at any given time.
25

Selling, General, and Administrative Expenses
The following table sets forth the components ofpresents our selling, general and administrative expenses for the periods indicated.
by program ($ in thousands):
Three Months Ended March 31,Change
20242023$%
Personnel compensation and related costs45,894 40,914 4,980 12 %
Professional service fees4,103 8,555 (4,452)(52)%
Other costs19,197 13,041 6,156 47 %
Total69,194 62,510 6,684 11 %
(in thousands)
  
Three months ended March 31,
 
  
      2021      
   
%
   
      2020      
   
%
 
Selling, General and Administrative Expenses:
                    
Personnel compensation and related costs
  $23,412    65.3   $13,042    69.7 
Professional service fees
   3,583    10.0    2,027    10.8 
Other costs
   8,843    24.7    3,645    19.5 
                     
Total
  $35,838    100.0   $18,714    100.0 
                     
Selling, general, and administrative expenses increased by $17.1$6.7 million in the first quarter of 2024, primarily due to:
an increase of $6.2 million in other costs, mainly related to $35.8higher general selling expenses for VYVGART which was launched in September 2023 and higher promotional fees for NUZYRA due to increased sales.
an increase of $5.0 million for the three months ended March 31, 2021 from $18.7 million for the three months ended March 31, 2020. The increase in general and administrative expenses included the following:
$10.4 million for increased personnel compensation and related costs which was primarily attributable to increased commercial and administrative personnel costs, due to hiringdriven by headcount growth; partially offset by
a decrease of more personnel during the three months ended March 31, 2021 and the grants of new share options and vesting of restricted shares to certain employees;
$1.5$4.5 million for increasedin professional service fee, mainly attributablefees, primarily related to our increased legal, compliance, accounting, human resources administrative, and investor and public relations expenses associated with being a public company; and
$5.2 million for increased other costs, mainly including selling, rental, and administrative expenses primary attributable to the commercial operation in Hong Kong and China.expenses.
Interest Income
Interest income decreased by $1.5$0.6 million to $0.2$9.7 million forin the three months ended March 31, 2021, from $1.7 million for the three months ended March 31, 2020 primaryfirst quarter of 2024 primarily due to the decrease of short-term investments balance.decreased cash and cash equivalents.
Interest Expenses
Interest expenses is nil for the three months ended March 31, 2021, compared toincreased by $0.1 million forin the three months ended March 31, 2020, as all thefirst quarter of 2024 primarily due to interest expenses on short-term borrowings were repaid in 2020.
Share of loss from equity method investment
In June 2017,debts we entered into an agreement with three third-partiesin February 2024. We had no such interest expenses in the prior year period.
Foreign Currency (Losses) Gains
Foreign currency losses was $2.1 million in the first quarter of 2024, primarily driven by remeasurement losses due to launch JING Medicine Technology (Shanghai) Ltd., or JING, an entity that will provide services for drug discovery and development, consultation and transfer of pharmaceutical technology. We account for our investment using the equity method of accounting because we do not control the investee but have the ability to exercise significant influence over the operating and financial policiesdepreciation of the investee. The c
apital contribution by us was RMB 26.3against the U.S. dollar, compared to foreign currency gain of $8.9 million in cash, which was pa
id in 2017 and 2018, representing 20% and 18%the first quarter of 2023, driven by remeasurement gain due to appreciation of the equity interest of JING as of December 31, 2020 and March 31, 2021 respectively. We recordedRMB against the gain on deemed disposal in this investee of $0.5 million and share of loss of $0.3 million for the three months ended March 31, 2021, and recorded share of loss in this investee of $0.1 million for the three months ended March 31, 2020.U.S. dollar.
Other Expense, netIncome, Net
Other expense,income, net increased by $3.1$8.1 million forto $9.4 million in the three months ended March 31, 2021 and 2020first quarter of 2024, primarily due to an increase of $4.4 million in gain of our equity investment in MacroGenics, Inc as a result of a decreasechanges in governmental subsidiesits stock price and an increase of $2.8 million in foreign exchange loss.government grants.
Income Tax Expense
Income tax expense was nil in the first quarter of 2024 and 2023.
19


Net Loss Attributable
Net loss was $53.5 million in the first quarter of 2024, or a loss per ordinary share attributable to Ordinary Shareholders
Ascommon stockholders of $0.05 (or loss per ADS of $0.55), compared to a result of the foregoing, we had net loss attributable toof $49.1 million in the first quarter of 2023, or a loss per ordinary shareholdersshare of $232.9 million for the three months ended March 31, 2021 compared to net$0.05 (or loss attributable to ordinary shareholdersper ADS of $48.0 million for the three months ended March 31, 2020.
$0.51).
Critical Accounting Policies and Significant Judgments and Estimates
We prepare our financial statements in conformity with U.S. GAAP, which requires usmanagement to make judgments, estimates, and assumptions. We continually evaluate these estimates and assumptions based on the most recently available information, our own historical experiences and various other assumptions that we believe toaffect the reported amounts of assets, liabilities, revenues, expenses, and related disclosures. Some of those judgments can be reasonable under the circumstances. Since the use of estimates is an integral component of the financial reporting process, actualsubjective and complex. Actual results could differ from our expectations as a result of changes in our estimates. Some of our accounting policies require a higher degree of judgment than others in their application and require us to make significant accounting estimates.
26

The selection ofOur most critical accounting policies and estimates, including those that require the most difficult, subjective, or complex judgments and other uncertainties affecting application of those policies and the sensitivity of reported results to changes in conditions and assumptions are factors that should be considered when reviewing our financial statements. We believe the following accounting policies involve the most significant judgments and estimates used in the preparation of our financial statements.inherently uncertain, are described below.
Revenue recognitionRecognition
In 2018, we adopted of ASC Topic 606 (“ASC 606”),
Revenue from Contracts with Customers,
in recognition of revenue. Under ASC 606, we recognize revenue when a customer obtains control of promised goods or services, in an amount that reflects the consideration expected to receive in exchange for those goods or services. To determine revenue recognition for arrangements that we determine are within the scope of ASC 606, we perform the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price, including variable consideration, if any; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) we satisfy a performance obligation. We only apply the five-step model to contracts when it is probable that we will collect the consideration to which we are entitled in exchange for the goods or services we transfer to the customer. Once a contract is determined to be within the scope of ASC 606 at contract inception, we review the contract to determine which performance obligations we must deliver and which of these performance obligations are distinct. We recognize as revenue the amount of the transaction price that is allocated to each performance obligation when that performance obligation is satisfied or as it is satisfied.
Our revenue is all from product sales. We recognize revenue from product sales when we have satisfied the performance obligation by transferring control of the product to the customers. Control of the product generally transfers to the customers when the delivery is made and when title and risk of loss transfers to the customers. Cost of sales mainly consists of the acquisition cost of products and royalty fees.
We have applied the practical expedients under ASC 606 with regard to assessment of financing components and concluded that there is no significant financing component given that the period between delivery of goods and payment is generally one year or less. We have generated product sales revenue since 2018. For the three months ended March 31, 2021 and 2020,sell our product revenues were primarily generated from the sale of ZEJULA (niraparib) and OPTUNE (Tumor Treating Fields) to customers.
In China, we sell the products to distributors (our customers), who ultimately sell the products to healthcare providers. Based on the nature of the arrangements,providers, primarily in mainland China. We recognize revenue when the performance obligations are satisfied upon the product’s delivery to distributors. Rebates are offered
We offer rebates to our distributors to compensate the distributors consistent with pharmaceutical industry practices. We are required to establish a provision for rebates in the same period the related product sales are recognized. The estimated amount of unpaid or unbilled rebates, if any, is recorded as a reduction of revenue. Estimated rebates
Significant judgments are determined based onrequired in making these estimates. In determining the appropriate accrual amount, we consider our contracted rates, sales volumes, and levellevels of distributor inventories. inventories, and historical experiences and trends. If actual results vary from our estimates or our expectations change, we will adjust these estimates accordingly, which would affect net product revenue and earnings in the period such variances become expected or known.
Research and Development Expenses
We regularly reviewhave a significant amount of research and development expenses, including with respect to pre-clinical and clinical trials for our product candidates. Such costs are expensed as incurred when they have no alternative future uses.
We contract with third parties to perform various pre-clinical and clinical trial activities on our behalf in the informationongoing development of our product candidates. Expenses related to thesepre-clinical and clinical trial activities are accrued based on the Company’s estimates and adjustof the amount accordingly.
In Hong Kong, we sellactual services performed by the products to customers, which are typically healthcare providersthird parties, such as oncology centers. We utilizeCROs and CMOs.
Significant judgments are required in estimating the actual services performed by the third parties for the respective period and the related expense accruals. In determining the appropriate accrual, we consider a third party for warehousing services. Based onvariety of factors, including contractual requirements with respect to services to be provided, related rates, and our assessment of services performed during the nature of the arrangement,period and progress with respect to any contractual milestones when we have determined that we are a principal innot yet been invoiced or otherwise notified by third parties of actual costs. If the transaction since we are primarily responsible for fulfilling the promise to provide the products to the customers, maintain inventory risk until delivery to the customersactual status and have latitude in establishing the price. Revenue is recognized at the amount to which we expect to be entitled in exchangetiming of services performed vary from our estimates, our reported expenses and earnings for the sale of the products, which is the sales price agreed with the customers. Consideration paid to the third party is recognized in operating expenses.corresponding period may be affected.
We did not recognize any contract assets and contract liabilities as of March 31, 2021 and 2020.
Share-Based Compensation
We grant share-based awards, including share options and
non-vested
restricted shares, to eligible employees, managementnon-employees, and directors and account for these share-based awards in accordance with ASC 718,
Compensation-Stock Compensation
. Employees’directors. Such share-based awards are measured at the grant date fair value of the awards and recognized as expenses (1) immediately at grant date if no vesting conditionsvalue.
20


Significant assumptions are required; or (2) using graded vesting method over the requisite service period, which is the vesting period. To the extent the required vesting conditions are not met resulting in the forfeiture of the share-based awards, previously recognized compensation expense relating to those awards are reversed. We determineddetermining the fair value of the stockshare options, granted to employeeswhich we estimate using the Black-Scholes option valuation model.
We also grant These assumptions include: (i) the expected volatility of our ADS price, (ii) the periods of time over which grantees are expected to hold their options prior to exercise (expected term), (iii) the expected dividend yield on our ADSs, and (iv) risk-free interest rates. Since we do not have sufficient trading history since our September 2017 initial public offering on Nasdaq to cover the expected term of our share options, to eligible non-employees and account for these share-based awardswe estimate expected volatility based on movements in accordance with ASC 718,
Compensation-Stock Compensation
. Non-employees’ share-based awards are measured at the grant date fair valueshare price of the awards and recognized as expenses (1) immediately at grant date if no vesting conditions are required; or (2) using graded vesting methodcertain companies we consider comparable over the requisite service period, whichmost recent equivalent historical period. Since we do not have sufficient historical information to develop reasonable expectations about future exercise patterns and post-vesting employment termination behavior, the expected term is derived from the average midpoint between the weighted average vesting period. All transactionsand the contractual term, also known as the simplified method. The expected dividend yield is zero as we have never paid dividends and do not currently anticipate paying any in which goods or servicesthe foreseeable future, and risk-free interest rates are received in exchange for equity instruments are accounted for based on quoted U.S. Treasury rates for securities with maturities approximating the fair value ofexpected term. If actual results vary from our estimates or our expectations change, our reported expenses and earnings for the consideration received or the fair value of the equity instrument issued, whichever is more reliably measurable. To the extent the required vesting conditions are not met resulting in the forfeiture of the share-based awards, previously recognized compensation expense relating to those awards are reversed. We determined the fair value of the stock options granted to non-employees using the Black-Scholes option valuation model.
27

Fair Value Measurements
We apply ASC Topic 820,
 Fair Value Measurements and Disclosures
, or ASC 820, in measuring fair value. ASC 820 defines fair value, establishes a framework for measuring fair value and requires disclosures tocorresponding period may be provided on fair value measurement.affected.
ASC 820 establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:
Level 1—Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets.
Level 2—Include other inputs that are directly or indirectly observable in the marketplace.
Level 3—Unobservable inputs which are supported by little or no market activity.
ASC 820 describes three main approaches, for example, to measuring the fair value of assets and liabilities: (1) market approach, (2) income approach and (3) cost approach. The market approach uses prices and other relevant information generated from market transactions involving identical or comparable assets or liabilities. The income approach uses valuation techniques to convert future amounts to a single present value amount. The measurement is based on the value indicated by current market expectations about those future amounts. The cost approach is based on the amount that would currently be required to replace an asset.
Financial instruments of our company primarily include cash, cash equivalents and restricted cash, short-term investment, accounts receivable, prepayments and other current assets, short-term borrowings, accounts payable and other current liabilities. As of each reporting date, the carrying values of cash and cash equivalents, short-term investment, accounts receivable, prepayments and other current assets, short-term borrowings, accounts payable and other current liabilities approximated their fair values due to the short-term maturity of these instruments, and the carrying value of restricted cash approximates its fair value based on the nature of and the assessment of the ability to recover these amounts.
Income Taxes
Current income taxes are provided on the basis of net income for financial reporting purposes, adjusted for income and expense items which are not assessable or deductible for income tax purposes, in accordance with the regulations of the relevant tax jurisdictions. We follow the liability method of accounting for income taxes.
Under this method,recognize deferred tax assets and liabilities are determined based on thefor temporary differences between the financial statements carrying amountsstatement and income tax bases of assets and liabilities, by applyingwhich are measured using enacted statutory tax rates and laws that will be in effect inwhen the period in which the temporary differences are expected to reverse. We record aA valuation allowance to offset deferred tax assets if based on the weight of available evidence,is provided when it is more likely than not that some portion, or all of thea deferred tax assetsasset will not be realized. The effect on deferred taxes of a changeSignificant judgements are required when evaluating tax positions in tax rate is recognized in our consolidated financial statements in the period of change.
In accordance with the provisions of ASC 740,
Income Taxes.
, we
We recognize in our financial statements the benefit of a tax position if the tax position is “more likely than not” to prevail based on the facts and technical merits of the position. Tax positions that meet the “more likely than not” recognition threshold are measured at the largest amount of tax benefit that has a greater than fifty percent likelihood of being realized upon settlement. We estimate our liability for unrecognized tax benefits which are periodically assessed and may be affected by changing interpretations of laws, rulings by tax authorities, changes and/or developments with respect to tax audits, and the expiration of the applicable statute of limitations. The ultimate outcome for a particular tax position may not be determined with certainty prior to the conclusion of a tax audit and, in some cases, appeal or litigation process.
We consider positive and negative evidence when determining whether some portion or all of our deferred tax assets will not be realized. This assessment considers among other matters,various factors, including the nature, frequency, and severity of current and cumulative losses, forecasts of future profitability, the duration of statutory carry-forward periods, our historical results of operations, and our tax planning strategies. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Based uponOur estimates may be affected by changing interpretations of laws, rulings by tax authorities, changes and/or developments with respect to tax audits, and expiration of the levelstatute of our historical taxable income and projections for future taxable income over the periods in which the deferred tax assets are deductible, we believe it is more likely than not that we will not realize the deferred tax assets resulted from the tax loss carried forward in the future periods.
Thelimitations. If actual benefits ultimately realized may differvary from our estimates. As each audit is concluded, adjustments, if any, are recorded inestimates or our financial statements in the period in which the audit is concluded. Additionally, in future periods, changes in facts, circumstances and new information may require us toexpectations change, we will adjust the recognition and measurement estimates with regard to individual tax positions. Changes in recognitionaccordingly, which would affect reported expenses and measurement estimates are recognizedearnings in the period in which the changes occur. As of March 31, 2021 and December 31, 2020, we did not have any significant unrecognized uncertain tax positions.
28
corresponding period.

B. Liquidity and Capital Resources
To date, we have financed our activities primarily through private placements, our September 2017 initial public offering and various follow-on offerings on the Nasdaq, stock exchange,and our September 2020 secondary listing and initial public offering on the Stock Exchange of Hong Kong and multiple follow-on offerings. Through March 31, 2021,Stock Exchange. In addition, we have raised approximately $164.6 million in private equity financing and approximately $1,644.6$2,462.7 million in net proceeds after deducting underwriting commissions and the offering expenses payable by us in our initial public offering and subsequent
follow-on
offerings on Nasdaq and our secondary listing.initial public offering on the Hong Kong Stock Exchange. Our operations have consumed substantial amounts of cash since inception. The net cash used in our operating activities was $169.5$90.1 million and $39.8$69.3 million in the first quarter of 2024 and 2023, respectively. For information on our research and development activities and related expenditures see the Research and Development Expenses, Selling, General, and Administrative Expenses, License and Collaboration Arrangements, and Results of Operations sections in above. In addition, as of March 31, 2024, we had commitments for capital expenditures of $1.1 million, mainly for the three months ended March 31, 2021purpose of plant construction and 2020, respectively.installation.
21


As of March 31, 2021,2024, we had cash, cash equivalents and restricted cash of $1,014.2 million. Our expenditures as a company principally focused on research and development, are largely discretionary and as such our current losses and cash used in operations do not present immediate going concern issues. Based on our current operating plan, we expect that our existing cash and cash equivalents, ascurrent restricted cash, and short-term investments of May 10, 2021,$750.8 million, which we expect will enable us to fundmeet our cash requirements including the funding of operating expenses, and capital expenditures, requirementsand debt obligations for at least the next 12 months.
Although we believe that we have sufficient capital to fund our operations for at least the next twelve months, after the datewe may, from time to time, identify opportunities to access capital through debt arrangements on favorable commercial terms. In February 2024, we entered into three such debt arrangements with Chinese financial institutions that the financial statements includedallow certain of our subsidiaries to borrow up to approximately $164.5 million (or RMB1,171.7 million) to support our working capital needs in this Quarterly Report are issued. However, in ordermainland China. As of March 31, 2024, we have short-term debts of approximately $48.3 million (or RMB342.5 million) pursuant to these debt arrangements. These debt arrangements will provide us with additional capital capacity that gives us enhanced flexibility to execute on our corporate strategic goals. For more information, see Note 9.
We may consider, or we may ultimately need, additional funding sources to bring to fruition ouror research and development objectives we will ultimately need additional funding sourcesor otherwise, and there can be no assurances that theysuch funding will be made available.available to us on acceptable terms or at all.
The following table providespresents information regarding our cash flows for the three months ended March 31, 2021 and 2020:
($ in thousands):
(in thousands)
  
Three months ended March 31,
 
  
        2021        
   
        2020        
 
Net cash used in operating activities
  $(169,500  $(39,841
Net cash provided by investing activities
   742,005    48,952 
Net cash (used in) provided by financing activities
   (271   279,484 
Effect of foreign exchange rate changes
   (930   (947
           
Net increases in cash, cash equivalents and restricted cash
  $571,304   $287,648 
           
Three Months Ended
March 31,
Change
20242023$
Net cash used in operating activities(90,106)(69,287)(20,819)
Net cash provided by (used in) investing activities3,292 (53,954)57,246 
Net cash provided by (used in) financing activities47,548 (3,886)51,434 
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash(104)(1,299)1,195 
Net decrease in cash, cash equivalents and restricted cash(39,370)(128,426)89,056 
Net Cash Used in Operating Activities
Net cash used in operating activities
During increased by $20.8 million to $90.1 million in the three months ended March 31, 2021, our operating activities used $169.5first quarter of 2024, primarily due to an increase of $24.7 million of cash, which resulted principally from ourin net loss of $232.9 million, adjusted for
non-cash
charges of $72.1 million, and cash providedchanges in our operating assets and liabilities, an increase of $8.7 million. Our$4.3 million in net
non-cash
charges during the three months ended March 31, 2021 primarily consisted loss, partially offset by a decrease of $62.3$8.3 million non-cash research and development expenses, a $1.4 million depreciation expense, a $7.3 million share-based compensation expense and a $1.3 million non-cash lease expense.in adjustments to reconcile net loss to net cash used in operating activities.
Net cash providedCash Provided by investing activities(Used in) Investing Activities
Net cash provided by investing activities was $742.0$3.3 million forin the three months ended March 31, 2021first quarter of 2024, compared to $49.0 million for the three months ended March 31, 2020. The increasenet cash used in cash provided by investing activities of $54.0 in the first quarter of 2023. This shift was primaryprimarily due to thea decrease of $100.0 million in purchases of short-term investments, a decrease of $2.5 million in purchases of property and equipment, partially offset by a decrease of $33.2 million in proceeds from the maturity of short-term investments.
investments, and an increase of $12.0 million from acquisition of intangible assets as we made a sales-based milestone payment which was capitalized as intangible assets in the fourth quarter of 2023.
Net Cash Provided by (Used in) Financing Activities
Net cash provided by financing activities
Net was $47.5 million in the first quarter of 2024, compared to net cash used in financing activities of $3.9 million in the first quarter of 2023. This shift was $0.3primarily due to $48.2 million forin proceeds from short-term debts we entered into in the three months ended March 31, 2021 comparedfirst quarter of 2024, partially offset by decreases of $5.1 million in taxes paid related to the net cash provided by financing activitiessettlement of $279.5equity awards and $1.2 million for the three months ended March 31, 2020. The cash used in financing activities was mainly attributable to the payment of costs of our secondary listing on Stock Exchange of Hong Kong in September 2020 net off by the proceeds from exercises of stock options. The decrease in cash provided by financing activities was primary due to the issuance of ADSs in our
follow-on
offering during the three months ended March 31, 2020.
C. Research and Development, Patents and Licenses, etc
Full details of our research and development activities and expenditures are given in the “Business” and “Operating and Financial Review and Prospects” sections of our Annual Report on Form 10-K for the year ended December 31, 2020, as filed with the SEC on March 1, 2021.
D. Trend Information
Other than as described elsewhere in this Quarterly Report on Form
10-Q,
we are not aware of any trends, uncertainties, demands, commitments or events that are reasonably likely to have a material adverse effect on our revenue, income from continuing operations, profitability, liquidity or capital resources, or that would cause our reported financial information not necessarily to be indicative of future operation results or financial condition.
29
22

E.
Off-balance
Sheet Arrangements
We currently do not engage in trading activities involving
non-exchange
traded contracts or interest rate swap transactions or foreign currency forward contracts. In the ordinary course of our business, we do not enter into transactions involving, or otherwise form relationships with, unconsolidated entities or financial partnerships that are established for the purpose of facilitating
off-balance
sheet arrangements or other contractually narrow or limited purposes.
F. Tabular Disclosure of Contractual Obligations
The following table sets forth our contractual obligations as of March 31, 2021. Amounts we pay in future periods may vary from those reflected in the table.
(in thousands)
  
Total
   
Less than
1 year
   
1 to 3 years
   
3 to 5 years
   
More than
5 years
 
Purchase Obligations
  $22,498   $16,991   $5,507   $—     $—   
Operating Lease Obligations
   18,232    5,573    6,228    4,379    2,052 
We also have obligations to make future payments to third party licensors that become due and payable on the achievement of certain development, regulatory and commercial milestones as well as tiered royalties on net sales. We have not included these commitments on our balance sheet or in the table above because the commitments are cancellable if the milestones are not complete and achievement and timing of these obligations are not fixed or determinable.
Recently Issued Accounting Standards
For more information regarding recently issued accounting standards, please see “Part II—Part II – Item 8—8. Financial Statements and Supplementary Data—Data – Recent accounting pronouncements”Accounting Pronouncements in our 2023 Annual Report on Form 10-K for the year endedReport. The Company has not adopted any new accounting standards since December 31, 2020, as filed with the SEC on March 1, 2021.
2023.
Item 3. Quantitative and Qualitative Disclosures About Market Risk
We are exposed to market risk including foreign exchange risk and credit risk, cash flow interest rate risk and liquidity risk.
Foreign Exchange Risk
Renminbi, or RMB, is not a freely convertible currency. The State Administration of Foreign Exchange, under the authority of the People’s Bank of China (“PBOC”), controls the conversion of RMB into foreign currencies. The value of RMB is subject to changes in central government policies and to international economic and political developments affecting supply and demand in the China Foreign Exchange Trading System market. The cash and cash equivalents of our companythe Company included aggregated amounts of RMB247.9$17.9 million and RMB155.9$25.1 million, which were denominated in RMB, as of March 31, 2021 and December 31, 2020, respectively, representing 4% and 5%3% of the cash and cash equivalents as of both March 31, 20212024 and December 31, 2020,2023, respectively.
OurWhile our financial statements are presented in U.S. dollars, our business mainly operates in mainland China with a significant portion of our transactions settled in RMB, and our financial statements are presented in U.S. dollars. Weas such, we do not believe that we currently have any significant direct foreign exchange risk and have not used any derivative financial instruments to hedge our exposure to such risk. Although, in general, our exposure to foreign exchange risks should be limited, the value of your investment in our ADSs and ordinary shares will be affected by the exchange rate between the U.S. dollar and the RMB and between the HK dollar and the RMB, respectively, because the value of our business is effectively denominated in RMB, while the ADSs will beand ordinary shares are traded in U.S. dollars.dollars and HK dollars, respectively.
30

The value of the RMB against the U.S. dollar and other currencies may fluctuate and is affected by, among other things, changes in Greater China’s political and economic conditions. The conversion of RMB into foreign currencies, including U.S. dollars, has been based on rates set by the PBOC. On July 21, 2005, China changed
its decade-old policy
of pegging theThe value of our ADSs and our ordinary shares will be affected by the RMB to theforeign exchange rates between U.S. dollar. Under the revised policy, the RMB is permitted to fluctuate within a narrow and managed band against a basket of certain foreign currencies. This change in policy resulted in a more than 20% appreciation of the RMB against the U.S. dollar in the following three years. Between July 2008 and June 2010, this appreciation halted,dollars, HK dollars, and the exchange rate between the RMB and U.S. dollar remained within a narrow band. In June 2010, the PBOC announced that China’s government would increase the flexibility of the exchange rate, and thereafter allowed the RMBRMB. For example, to appreciate slowly against the U.S. dollar within the narrow band fixed by the PBOC. However, in August 2015, the PBOC significantly devalued the RMB.
To the extent that we need to convert U.S. dollars or HK dollars into RMB for our operations or if any of our arrangements with other parties are denominated in U.S. dollars or HK dollars and need to be converted into RMB, appreciation of the RMB against the U.S. dollar or the HK dollar would have an adverse effect on the RMB amount we receive from the conversion. Conversely, if we decide to convert RMB into U.S. dollars or HK dollars for the purpose of making payments for dividends on our ordinary shares or ADSs or for other business purposes, appreciation of the U.S. dollar or the HK dollar against the RMB would have a negative effect on the U.S. dollarconversion amounts available to us.
Since 1983, the Hong Kong Monetary Authority (“HKMA”) has pegged the HK dollar to the U.S. dollar at the rate of approximately HK$7.80 to US$1.00. However, there is no assurance that the HK dollar will continue to be pegged to the U.S. dollar or that the HK dollar conversion rate will remain at HK$7.80 to US$1.00. If the HK dollar conversion rate against the U.S. dollar changes and the value of the HK dollar depreciates against the U.S. dollar, our assets denominated in HK dollars will be adversely affected. Additionally, if the HKMA were to repeg the HK dollar to, for example, the RMB rather than the U.S. dollar, or otherwise restrict the conversion of HK dollars into other currencies, then our assets denominated in HK dollars will be adversely affected.
Credit Risk
OurFinancial instruments that are potentially subject to significant concentration of credit risk is primarily attributable to the carrying amountsconsist of cash and cash equivalents, short-term investments, accounts receivable, and short-term investment. notes receivable.
23


The carrying amounts of cash and cash equivalents and short-term investmentinvestments represent the maximum amount of losslosses due to credit risk. As of March 31, 20212024 and December 31, 2020,2023, we had cash and cash equivalents of $650.8 million and $790.2 million, and short-term investments of nil and $16.3 million, respectively. As of March 31, 2024 and December 31, 2023, all of our cash and cash equivalents and short-term investments were held by major financial institutions located in mainland China and international financial institutions outside of mainland China which we believe are of high credit quality and for which we will continually monitor continued credit worthiness.
Accounts receivable are typically unsecured and are derived from product sales and collaborative arrangements. We manage credit risk related to our accounts receivable through ongoing monitoring of outstanding balances and limiting the amount of credit extended based upon payment history and credit worthiness. Historically, we have collected receivables from customers within the credit worthinessterms with no significant credit losses incurred. As of these financial institutions.
March 31, 2024, our two largest customers accounted for approximately 21% of our total accounts receivable collectively.
Inflation
In recent years, China has not experienced significant inflation, and thus inflation has not had a material impact on our results of operations. Although we have not been materially affected by inflationCertain accounts receivable balances are settled in the past, we can provide no assuranceform of notes receivable. As of March 31, 2024, such notes receivable included bank acceptance promissory notes that we willare non-interest bearing and due within six months. These notes receivable were used to collect the receivables based on an administrative convenience, given these notes are readily convertible to known amounts of cash. In accordance with the sales agreements, whether to use cash or bank acceptance promissory notes to settle the receivables is at our discretion, and this selection does not be affected inimpact the future by higher rates of inflation in China.
agreed contractual purchase prices.
Item 4. Controls and Procedures
Management’s Evaluation of our Disclosure Controls and Procedures
We maintainOur management, including our Chief Executive Officer and Chief Financial Officer, performed an evaluation of the effectiveness of our disclosure controls and procedures that(as defined in Exchange Act Rule 13a-15(e)) as of the end of the period covered by this report. Our disclosure controls and procedures are designed to ensure that the information required to be disclosed in the reports that we file or submitfurnish under the Securities Exchange Act of 1934, as amended, is (1) recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms and (2)that such information is accumulated and communicated to our management, including our principal executive officerChief Executive Officer and principal financial officer,Chief Financial Officer, to allow timely decisions regarding required disclosure.
As of March 31, 2021, our management, with the participation of our principal executive officer and principal financial officer, evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules
13a-15(e)
and
15d-15(e)
under the Securities Exchange Act of 1934, as amended). Our management recognizes that any Any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives, andthe desired control objective. Based upon that evaluation, our management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Our principal executive officer and principal financial officer havehas concluded based upon the evaluation described above that, as of March 31, 2021,2024, our disclosure controls and procedures were effective at the reasonable assurance level.effective.
Changes in Internal Control over Financial Reporting
During the three months ended March 31, 2021, there have not been anyThere were no changes in our internal controlscontrol over financial reporting (as such item is defined in Rules
13a-15(f)
and
15d-15(f)
promulgated under) during the Securities Exchange Act of 1934, as amended)fiscal quarter ended March 31, 2024 that have materially affected, or are reasonably likely to materially affect, our internal controlscontrol over financial reporting.
31
24

Table of Contents

PART II—II - OTHER INFORMATION
Item 1. Legal ProceedingsProceedings.
We may be, from time to time, subject to claims and suits arising in the ordinary course of business. Although the outcome of these and other claims cannot be predicted with certainty, management does not believe that the ultimate resolution of these matters will have a material adverse effect on our financial position or on our results of operations. We are not currently a party to nor is our property the subject of, any actual or threatened material legal or administrative proceedings.
Item 1A. Risk Factors
Factors.
We are subject to risks and uncertainties that could, directly or indirectly, adversely affect our business, results of operations, financial condition, liquidity, cash flows, strategies, and/or prospects. There have been no material changes from thein our risk factors set forthfrom those disclosed in our Annual Report on Form
10-K
for the year ended December 31, 2020, as filed with the SEC on March 1, 2021.
The following is a summary of significant risk factors and uncertainties that may affect our business which are discussed in more detail in our Annual Report on Form 10-K for the year ended December 31, 2020:
our ability to successfully commercialize ZEJULA, Optune, QINLOCK and any other products and product candidates that we may obtain regulatory approval for;
the anticipated amount, timing and accounting of revenues; contingent, milestone, royalty and other payments under licensing, collaboration, and acquisition agreements; tax positions and contingencies; collectability of receivables; pre-approval inventory; cost of sales; research and development costs; compensation and other selling, general and administrative expenses; amortization of intangible assets; foreign currency exchange risk; estimated fair value of assets and liabilities; and impairment assessments;
expectations, plans and prospects relating to sales, pricing, growth and launch“Risk Factors” section of our marketed and pipeline products;
2023 Annual Report.
the potential impact of increased product competition in the markets in which we compete, including increased competition from new originator therapies, generics, prodrugs and biosimilars of existing products and products approved under abbreviated regulatory pathways, including generic or biosimilar versions of our products;
patent terms, patent term extensions, patent office actions and expected availability and any period of regulatory exclusivity;
the timing, outcome and impact of administrative, regulatory, legal or other proceedings related to our patents and other proprietary and intellectual property rights, tax audits, assessments and settlements, pricing matters, sales and promotional practices, product liability and other matters;
the drivers for growing our business, including our plans and intention to commit resources relating to discovery, research and development programs and business development opportunities as well as the potential benefits and results of certain business development transactions;
our ability to finance our operations and business initiatives and obtain funding for such activities;
the expectations, development plans and anticipated timelines, including costs and timing of potential clinical trials, filings and approvals of our products, product candidates and pipeline programs, including collaborations with third-parties, as well as the potential therapeutic scope of the development and commercialization of our and our collaborators’ pipeline products;
reputational or financial harm to our business arising from adverse safety events, including product liability claims or lawsuits affecting our or any of our licensors’ marketed products, generic or biosimilar versions of our or any of our licensors’ marketed products or any other products from the same class as one of our or any of our licensors’ products;
unexpected impacts on our business operations including sales, expenses, supply chain, manufacturing, cyber-attacks or other privacy or data security incidents, research and development costs, clinical trials and employees;
the potential impact of measures being taken worldwide designed to reduce healthcare costs and limit the overall level of government expenditures, including the impact of pricing actions and reduced reimbursement for our products;
our manufacturing capacity, use of third-party contract manufacturing organizations, plans and timing relating to changes in our manufacturing capabilities or activities in new or existing manufacturing facilities;
lease commitments, purchase obligations and the timing and satisfaction of other contractual obligations;
the impact of new laws, regulatory requirements, judicial decisions and accounting standards;
the disruption of our business relationships with our licensors;
the direct and indirect impact of the COVID-19 pandemic on our business and operations, our and our partners’ ability to effectively travel, as needed, during the COVID-19 pandemic, and the duration and impact of COVID-19 or any of its variants that may affect, precipitate or exacerbate one or more of any of the risks and uncertainties mentioned in this section;
our ability to effectively manage our growth;
32

the disruption in the capital or credit markets which may adversely impact our ability to obtain necessary capital or credit market financing;
the geopolitical tensions that exist between China and the United States may adversely affect our business, our ability to grow, and our access to necessary capital or credit markets;
our ability to retain key executives and to attract, retain and motivate personnel; and
other risks and uncertainties, including those listed under “Part I—Item 1A—Risk Factors” in our Annual Report on
Form 10-K
for the year ended December 31, 2020.
These factors should not be construed as exhaustive and should be read with the other cautionary statements and other information in our Annual Report on Form 10-K for the year ended December 31, 2020 and our other filings with the SEC.
Item 2. Unregistered Sales of Equity Securities and Use of ProceedsProceeds.
None.
Item 3. Defaults Upon Senior SecuritiesSecurities.
None.
Item 4. Mine Safety DisclosuresDisclosures.
None.
Item 5. Other Information
Information.
Effective on May 7, 2021,Other than as described below, during the Board appointed Tao Fu as the Chief Strategy Officerperiod covered by this report, none of the Company. Concurrently with his appointmentCompany’s directors or executive officers has adopted or terminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement (each as Chief Strategy Officer, Mr. Fu voluntarily resigned from his positions as the President and Chief Operating Officerdefined in Item 408 of Regulation S-K).
On February 23, 2024, William Lis, one of the Company and from his position asCompany’s directors, adopted a directornew written Rule 10b5-1 trading arrangement for the disposition of up to 10,397 of the Company, effective immediately. In his new role as Chief Strategy OfficerCompany’s ADSs, each representing ten of the Company’s ordinary shares, to cover tax obligations in connection with the vesting of a previously granted restricted stock award. This Rule 10b5-1 trading arrangement is scheduled to terminate no later than July 31, 2024.
In addition, in the 2023 Annual Report, the Company Tao Fu will focus inadvertently omitted disclosure regarding the adoption of a new written Rule 10b5-1 trading arrangement on December 13, 2023 by F. Ty Edmondson, the Company’s corporate developmentChief Legal Officer, for the sale of up to 40,000 ADSs. This Rule 10b5-1 trading arrangement is scheduled to terminate no later than November 29, 2024. In addition, the Rule 10b5-1 trading arrangement adopted by Rafael Amado, the Company’s President, Head of Global Oncology Research and other strategic objectives.
Development, on December 15, 2023 is for the sale of up to 15,750 ADSs, rather than 94,500 ADSs as previously disclosed in our 2023 Annual Report.
33
25

Table of Contents

Item 6. Exhibits.
Exhibit Index
Exhibit
Number
Exhibit Title
Exhibit

Number
10.1#
10.2
3.1
Fifth AmendedFacility Letter, dated as of February 5, 2024, by and Restated Memorandum Association ofbetween Zai Lab Limited and Bank of China (Hong Kong) Limited (incorporated by reference to Exhibit 10.33 to our Annual Report on Form 10-K (File No. 001-38205) filed on February 27, 2024
10.3
10.4
3.2
Fourth AmendedUnofficial English Translation of Maximum-Amount Guarantee Contract, dated as of February 6, 2024, by and Restated Articles of Association ofbetween Zai Lab Limited and Shanghai Pudong Development Bank Co., Ltd. Zhangjiang Hi-Tech Park Sub-branch (incorporated by reference to Exhibit 3.1 to Amendment No. 210.3 to our Registration StatementCurrent Report on Form F-18-K (File No. 333-219980)001-38205) filed with the SEC on September 1, 2017)February 8, 2024)
10.5
4.1
FormUnofficial English Translation of Deposit AgreementMaximum Credit Contract, dated as of February 6, 2024, by and between Zai Lab (Suzhou) Co., Ltd. and Bank of Ningbo Co., Ltd. Suzhou Branch (incorporated by reference to Exhibit 4.1 to Amendment No. 210.4 to our Registration StatementCurrent Report on Form F-18-K (File No. 333-219980)001-38205) filed with the SEC on September 1, 2017)February 8, 2024)
10.6
4.2
FormUnofficial English Translation of American Depositary ReceiptElectronic Commercial Draft Discounting Master Agreement, dated as of February 6, 2024, by and between Zai Lab (Suzhou) Co., Ltd. and Bank of Ningbo Co., Ltd. Suzhou Branch (incorporated by reference to Exhibit 4.1 to Amendment No. 210.5 to our Registration StatementCurrent Report on Form F-18-K (File No. 333-219980)001-38205) filed with the SEC on September 1, 2017)February 8, 2024)
10.7
4.3
Registrant’s Specimen Certificate for Ordinary SharesUnofficial English Translation of Online Working Capital Loan Master Agreement, dated as of February 6, 2024, by and between Zai Lab (Suzhou) Co., Ltd. and Bank of Ningbo Co., Ltd. Suzhou Branch (incorporated by reference to Exhibit 4.3 to Amendment No. 210.6 to our Registration Statement on Form F-1 (File No. 333-219980) filed with the SEC on September 1, 2017)
4.4
Third Amended and Restated Shareholders Agreement between Zai Lab Limited and other parties named therein dated June 26, 2017 (incorporated by reference to Exhibit 4.4 to our Registration Statement on Form F-1 (File No. 333-219980) filed with the SEC on August 15, 2017)
4.5
Description of Securities Registered Pursuant to Section 12 of the Securities Exchange Act (incorporated by reference to Exhibit 4.5 to our AnnualCurrent Report on Form 10-K8-K (File No. 001-38205) filed with the SEC on March 1, 2021)February 8, 2024)
31.1
10.1*^
Collaboration and License Agreement between argenx BV and Zai Auto Immune (Hong Kong) Limited dated January 6, 2021
10.2*^
License Agreement between Turning Point Therapeutics, Inc. and Zai Lab (Shanghai) Co., Ltd. dated January 10, 2021
10.3*^
Amendment No. 1 to License Agreement between Turning Point Therapeutics, Inc. and Zai Lab (Shanghai) Co., Ltd. dated March 31, 2021
31.1*
Certification of Chief Executive Officer Required by Exchange Act Rule 13a-14(a)
31.2
31.2*
Certification of Chief Financial Officer Required by Exchange Act Rule 13a-14(a)
32.1
32.1**
Certification of Chief Executive Officer Required by Rule 13a-14(b) and18 U.S.C. Section 1350 of Chapter 63 of Title 18 of the United States Code
32.2
32.2**
Certification of Chief Financial Officer Required by Rule 13a-14(b) and18 U.S.C. Section 1350 of Chapter 63 of Title 18 of the United States Code
101.INS*Inline XBRL Instance Document-the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.CAL*
101.SCH*
Inline XBRL Taxonomy Extension Schema Document
101.CAL*Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB*
101.LAB*
Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE*
101.PRE*
Inline XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF*
101.DEF*
Inline XBRL Taxonomy Extension Definitions Linkbase Document
104*
104*
Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

# Management contract or compensatory plan, contract, or arrangement
*
Filed herewith
**
Furnished herewith
^
Certain confidential information contained in this exhibit has been omitted because it (i) is not material and (ii) would be competitively harmful if publicly disclosed.
34
26

Table of Contents

SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
ZAI LAB LIMITED
Dated: May 10, 20218, 2024By:By:
/s/ Billy Cho
Yajing Chen
Name:Name:
Billy Cho
Yajing Chen
Title:Title:Chief Financial Officer
(Principal Financial and Accounting Officer)
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