SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON D.C. 20549
                             -------------------------------------------

                                   FORM 10-K

                ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)15 (d)
                    OF THE SECURITIES EXCHANGE ACT OF 1934

                  For the fiscal year ended December 31, 19992000
                        Commission file number  1-13879

                                  OCTEL CORP.
            (Exact name of registrant as specified in its charter)

     DELAWARE                                    98-0181725
                                                 ----------
     (State or other jurisdiction of             (IRS Employer
     incorporation or organization)              Identification No.)

     Global House
     Bailey Lane
     Manchester
     United Kingdom                              M90 4AA
     (Address of principal executive offices)    (Zip Code)

     Registrant's telephone number, including area code: 011-44-161-498-8889
                                              ---------

Securities registered pursuant to Section 12(b) of the Act:

                                                    Name of each exchange on
     Title of each class                                which registered
     -------------------                                ----------------

Common stock, $0.01 par value                        New York Stock Exchange

                                                              ------
Securities registered persuantpursuant to Section 12 (g)  of the Act:  None
                                                              ----------

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, and (2) has been subject to the filing requirements for
the past 90 days.

                                  Yes     X
                                      -------------------
                                  No  ----------_________


Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K.
                                       [_]
                                    -------[  ]
                                    ----------

As of March 10, 2000,February 28, 2001, the aggregate market value of the voting stock held by
non-affiliates of the registrant was $130,712,166.$156,281,982

As of March 10, 2000, 13,406,376February 28, 2001, 11,857,510 shares of the registrant's stock were
outstanding.

                      DOCUMENTS INCORPORATED BY REFERENCE

Portions of the 19992000 Annual Report to Stockholders are incorporated by reference
into Parts I, II, III and IV.  Certain portions of Octel Corp.'s proxy statement
to be mailed to stockholders on or about March 27, 200026, 2001 for the annual meeting
of Stockholders to be held on May 9, 20008, 2001 are incorporated in Part III hereof by
reference.

                                       1


PART 1
- ------

Item 1    Business

General

Octel Corp., a Delaware corporation (the "Company") is a major manufacturer and
distributor of fuel additives and other specialty chemicals. Its primary
manufacturing operation is located at Ellesmere Port, South Wirral, United
Kingdom. The Company's products are sold globally, primarily to oil refineries.
Principal product lines are lead alkyl antiknock compound ("TEL"), other
petroleum additives and performance chemicals.

Until May 22, 1998, the Company was a wholly owned subsidiary of Great Lakes
Chemical Corporation, a Delaware corporation ("GLCC"). On May 22, 1998, GLCC
consummated the spin-off of its petroleum additives business by distributing
shares in the Company to the stockholders of GLCC in a ratio of one Company
share for every four GLCC shares held. In connection with the spin-off the
Company issued 14,762,417 shares of common stock on May 26, 1998. A further 969
shares were subsequently issued in respect of late notified changes in GLCC
stockholders at the record date of the spin-off issue.

The term "Octel" as used herein means Octel Corp. and its subsidiaries unless
the context indicates otherwise.

Management's Discussion and Analysis of Financial Condition and Results of
Operations on pages 14 through 2119 of the 19992000 Annual Report to Stockholders (the
"Report") are incorporated herein by reference.

Segmental Information

The Company presently has one dominant industry segment, petroleum additives.
Note 2 on the Financial Statements included in the Report (the "Financial
Statements") on pages 3129 and 3230 of the Report, is incorporated herein by
reference.

Description of the Business

Management's Discussion and Analysis of Financial Condition and Results of
Operations, on pages 14 through 2119 of the Report, is incorporated herein by
reference.

Overview
- --------

The Associated Octel Company Limited was formed in 1938 to manufacture and
market TEL as an antiknock additive for gasoline.

The Company is an international chemical company specialising in the
manufacture, distribution and marketing of fuel additives.additives and specialty
chemicals.  The Company is organised into two Strategic
Business Unitsbusiness units for reporting
purposes - TEL and Specialty Chemicals. The TEL business, which accounted
for approximately 77% of the Company's 1999 sales, is the world's leading
producer of TEL that is used by oil refineries world-wide to boost the octane
levels in gasoline which allows fuel to burn more efficiently and prevents
engine knock during the fuel cycle. The Specialty Chemicals business, which
accounted for approximately 23% of the Company's 1999 sales, provides a broad
range of petroleum additives, including combustion improvers, fuel detergents
and

                                       2


functional performance products and manufactures and markets a range of
chemicals including Octaquest(R) a biodegradable chelating agent developed for
the detergent market.


TEL
- ---

TEL, the most significant of the Company's products, accounted for approximately
77%71% of the Company's 19992000 sales.  TEL was first developed in 1928 and introduced
into the European market for internal combustion engines to boost octane levels
in gasoline, allowing it to burn more efficiently and eliminating engine knock.
TEL remains the most cost-effective octane enhancer for motor gasoline and has
the added benefit of actingIt also acts as a lubricity aid, reducing engine wear.

                                       TEL is
used as a gasoline additive in various concentrations depending on the intrinsic
nature of the base fuel and the targeted octane number.

While TEL remains the most cost-effective and energy-efficient additive from an
octane-boosting perspective, leaded gasoline undermines the effectiveness of
catalytic converters, which are increasingly being used to reduce automobile
exhaust emissions.  There has also been increasing pressure from regulators and
environmental groups regarding the alleged harmful effects on human health of
leaded gasoline.  Environmental agencies and the World Bank are advocating the
elimination of TEL in automotive gasoline.2


Worldwide use of TEL has declined since 1973 following the enactment of the US
Clean Air Act of 1970 and similar legislation in other countries. The decline in
TEL volumes since 1990 has been between 10% and 15% per annum,countries, and management
believes that volumes will continue to fall at the upper end of this range for
the next two years.

While TEL business is declining, it will remain viable for a number of years. It
is costly for refineries to switch their gasoline production process to unleaded
gasoline and therefore upgradingby some refineries may not be economically
justifiable. These refineries may decide to continue operating until reduced
demand for leaded gasoline forces their closure. There are also significant
costs in converting automobiles and gasoline stations to accommodate the
increased use of unleaded fuels. The transition to lead-free fuel is therefore
unlikely to happen globally all at once.15% per annum.

The Company intends to manage the decline safely and effectively and to maximize
the cash flow through the decline.  Continuous cost improvement measures have
been, and will continue to be, taken to respond to declining market demand.

Specialty Chemicals
- -------------------

The Specialty Chemicals Business Unit comprises two developing business areas -
Petroleum Specialties and Performance Chemicals.


The Petroleum Specialties business develops, produces and markets a range of
specialty products used as fuel additives built on the TEL operations.  The
Company has developed a range of products and customized blends to meet market
demand for cleaner-burning and more efficient fuels.  The Refinery Services unit
supplies a growing list of products and services that improve operational
efficiencies and product performance at the refinery.  The addition ofCollaborative ventures
with Hi-Mar, joint ventures such as Valvemaster(R) Limited and Octel Starreon
LLC, and acquisitions such as Octel Deutschland GmbH to Octel's group in December, 1998 opened new European
marketing opportunitiesare part of an ongoing
program of growth through mergers and an expanded product range including ferrocene, an
iron based combustion improver. The Octel Starreon LLC joint venture in March,
1999 has developed the Company's marketing strength with end-users, fleets and
oil-jobbers.

                                       3
acquisitions.

The Performance Chemicals focus going forward is to develop high performance and
particularly environmentally friendly products from its technology base.  The
major current line is the Octaquest(R), family, developed for the detergent
market but now addressing new markets in personal care, textiles, photographicspaper and
household
cleaning. Octaquest(R) technology is also the platform for the development of a
family of products such as Octahib(R), a biodegradable corrosion inhibitor that
protects metal.photographics.

Raw Materials
- -------------

Raw material purchases account for a substantial portion of the Company's
manufacturing costs.  The major purchases are lead, sodium, ethyl chloride and
dibromoethane.  These materials are available readily from more than one source,
and the Company uses long term contracts to enhance the security of supply and
manage the risk of price escalation.


Patents and Intellectual Property
- ---------------------------------

The Company has a portfolio of trademarks and patents, granted and in the
application stage, covering products and processes.  These trademarks and
patents relate primarily to the Petroleum Specialties and the Performance
Chemicals businesses, in which intellectual property forms a significant part of
the Company's competitive strengths.  The majority of these patents were
developed by the Company.  Most patents have more than ten years life remaining.
The Company also holds a license for the manufacture of fuel detergents.  The
Company has trademark registrations for the use of the name Octel(R) and for the
Octagon device in Classes 1 and 4 of the "International Classification of Goods
and Services for the Purposes of the Registration of Marks" in all countries in
which it has a significant market presence except for the US in respect of which
the appropriate applications have been made.  Octel also has trademark
registrations for Octaquest(R).  The Company has application in progress for a
number of other trademark registrations in several jurisdictions.

                                       3
Octel America Inc., a subsidiary of the Company, has trademarks for Stadis(R),
an aviation and ground fuel conductivity improver, Ortholeum(R), a lube oil
additive antioxidant and metal deactivator, Ocenol(R), an antifoam for refinery
use, and Valvemaster(R), a valve seat recession additive.  The Company does not
consider its business as a whole to be dependent on any one trademark, patent or
licence.

Customers
- ---------

TEL sales are made principally to the retail refinery market. In 1999, 99% of
Octel's sales volume was to the retail market which comprises
independent, state or major oil company-owned refineries located throughout the
world.  Within this market, refineries owned by British Petroleum, Mobil Oil and
Texaco Oil are entitled to profit participation payments, based on their ongoing
purchases from the Company, by virtue of their former partnership interest in
Octel Associates, an Octel Corp. subsidiary.  Selling prices to other refineriesmajor customers
are principally negotiated under long-term supply agreements, with varying prices and terms
of payment.


The customers of the Specialty Chemicals business are multinational oil
companies and fuel retailers.  Traditionally, a large portion of the total
market was captive to oil companies which had fuel additives divisions providing
supplies directly to their respective refinery customers.  As a result of
recent
corporate restructurings and various mergers, joint ventures and other
collaborative arrangements involving downstream refining and marketing
operations, the tied supply arrangements between oil companies and their captive
fuel additive divisions have been weakened and many refineries are increasingly
looking to purchase their fuel

                                       4
 additive requirements on the open market.  This
trend is creating new opportunities for independent additive marketers such as
the Company.

Competition
- -----------

The world-wide market for the Company's primary product, TEL, is highly
competitive.  In this market Octel competes not only with other sellers of TEL
but with marketers of products and processes providing alternative ways of
enhancing octane performance in automotive gasoline. Approximately 98% of all
TEL sold is used to improve the antiknock characteristics of gasoline for
automobiles. Other products and processes that are used to enhance octane
performance in automotive gasoline include oxygenates (primarily methyl tertiary
butyl ether ("MTBE") and ethanol) or aromatics (such as benzene and toluene) as
gasoline blending components, as well as the installation of additional
reforming capacity through refinery upgrades. In addition, non-lead metallic
based antiknock additives are currently under development by several companies
including Octel. Government regulations have
restricted or eliminated the use of TEL as an automotive gasoline additive in
many of the largest and developed markets such as the US.  As a result,
worldwide demand for TEL is progressively shrinking as the use of unleaded
gasoline becomes more widespread.  On a worldwide basis Octel remains the
largest TEL marketer.


The Company's Specialty Chemicals business operates in a competitive
environment, with its main competitors being large oil and chemical companies.
No one company holds a dominant market share.  The Company considers its
competitive strengths are its strong technical development capacity,
independence from major oil companies and its strong long-term relationships
with refinery customers in the TEL market which provide synergies with the
petroleum additives business.

The Company is seeking to expand its Specialty Chemicals business. Growth will
be sought from a combination of internal and external sources, including the in-
house development of new products through research and development, exploitation
of current products into new markets, licensing agreements, custom synthesis of
specialty products and acquisitions of products and/or businesses.

Ethyl Agreements
- ----------------

The Company supplies Ethyl on a wholesale basis with TEL for resale to customers
under two separate long-term supply agreements at prices adjusted annually
through agreed formulas. Under one of these agreements (the "US TEL Supply
Agreement"), effective January 1, 1998, Ethyl purchases from the Company its TEL
requirements for resale to its customers in the United States. In the other
agreement, dated December 22, 1993, Ethyl purchases TEL from the Company for
resale to customers located outside the United States. The maximum quantities of
TEL Ethyl can purchase under the non-US agreement are set at a fixed percentage
of the Company's annual production capacity. Pursuant to a Bulk Transportation
Agreement, dated March 25, 1994, Ethyl supplies the Company with all of its bulk
transportation requirements for TEL. The Company, Ethyl and GLCC reached an
agreement with the Federal Trade Commission on June 24, 1998 with respect to the
terms of a consent decree governing sales of TEL by the Company to Ethyl for
resale in the US market. The Company and Ethyl complied with the provisions of
the consent decree by negotiating and putting into effect a new long-term
contract governing the supply of TEL to Ethyl for resale in the US market. It
should be noted that the entire US TEL market is relatively small and therefore
only a very minor portion of the Company's sales to Ethyl are for resale in the
US market. Neither the terms of the consent decree nor the execution of the US
TEL contract with Ethyl is expected to have a material adverse effect on the
Company's business, results of operation or financial condition.

                                       5


Effective October 1, 1998 the Company's UK subsidiary The Associated Octel
Company Limited ("Associated Octel") signed agreements with Ethyl to market and
sell TEL in areas of the world excluding North America and European Union.
Under the agreements, all marketing and sales efforts made to customers are
managed by and made in the name of Associated Octel.  Ethyl provides bulk
transportation services in support of the agreements while Octel continues to
produce all TEL marketed under these agreements.  Depending upon cost,
performance and flexibility, one or both companies provide other TEL services.

                                       4


Effective January 1, 2000, OBOAdler entered into sales and marketing agreements
with Ethyl similar to those in place with Associated Octel.

Octel supplies Ethyl on a wholesale basis with TEL for resale to customers in
the United States and European union under two separate long term supply
agreements at prices adjusted annually through agreed formulas.

Technology
- ----------

The Company's research and development facilities are located at Ellesmere Port,
UK, while its advanced fuel testing facility to support the TEL and Petroleum
Specialties businesses is located at Bletchley, UK.  The Company's research and
development activity has been, and will continue to be, focused on the
development of new products and formulations for the Petroleum Specialties and
the Performance Chemicals businesses.  Technical customer support is also
provided for the TEL business.  Expenditures to support research,
product/application development and technical support services to customers were
$3.1 million, $3.9 million and $3.1 million in 2000, 1999 and $3.8 million in 1999, 1998, and 1997,
respectively.  The Company considers that its strong technical capability
provides it with a significant competitive advantage.  In the last three years,
the Petroleum Specialties business has developed new detergent, lubricity and
combustion improver products, in addition to the introduction of several new
cost effective fuel additive packages.  A patented process for manufacturing
Octaquest(R) has enabled the Company to enter into a new market in the
performance chemicals area.


Health, Safety and Environmental Matters
- ----------------------------------------

The Company is subject to Environmental Laws in all of the countries in which it
does business.  The principal Environmental Laws to which the Company is subject
in the UK are the Environmental Protection Act 1990, the Water Resources Act
1991, the Health and Safety at Work Act 1974 and regulations and amendments
thereto.  Management believes that the Company is in material compliance with
all applicable Environmental Laws, and has made appropriate provision for the
continued costs of compliance with Environmental Laws.  Nevertheless, there can
be no assurance that changes in existing Environmental Laws, or the discovery of
additional liabilities associated with the Company's current or former
operations, will not have a material adverse effect on the Company's business,
results of operations or financial condition.


Human Resources
- ---------------

The Company's workforce at December 31, 19992000 consisted of 1,184860 employees, of
which 883552 were in the UK.  Approximately 60% of the Company's employees in the
UK are represented by unions, including the Transport and General Workers Union
and the Amalgamated Engineering and Electrical Union.

The Company has a majorin place an employee communication program to help its employees
understand the business issues surrounding the Company, the TEL business and the
corporate downsizing program that has been implemented to respond to declining
TEL demand.  Regular briefings are conducted by line managers where Company-wide
and departmental issues are discussed.  More formal communication takes place
with the trade unions which the Company recognizes for negotiating and
consultative purposes.

6
Management believes that the communication program has been highly successful
and has contributed to achieving a significant reduction in the Company's UK
workforce since January 1, 1996.in recent years.  The Company has

                                       5


implemented an extensive retraining program which will enable further
improvements in the productivity and flexibility of the Company's UK workforce.

The Company closed one of its three TEL buildings at year-end 1998. Following
the agreement of a further voluntary severance program in November 1999, 330
employees based in the United Kingdom will leave the Company during 2000. By mid
2000, the total UK workforce will be reduced by 70% from that employed in June
1996. This has all been achieved through voluntary severance programs.

Item 2   Properties

A summary of the Company's principal facilities is shown in the following table.
Each of these properties is owned by the Company, except where otherwise noted:-

Location Principal Operations - -------- -------------------- Newark, Delaware, US/(1)/ Octel Corp. Headquarters; Petroleum Specialties regional office London, UK/(1)/ Sales and Marketing Manchester, (UK)/(1)/ Octel Corp. European Headquarters Ellesmere Port, UK Associated Octel Headquarters; Business Team; Manufacturing; Research & Development; Administration Bletchley, UK Fuel Technology Center Herne, Germany/(1)/ Octel Deutschland GmbH; Manufacturing and Administration Doberitz, Germany Novoktan GmbH; Manufacturing and Administration /(1)/ Leased property
The group's TEL manufacturing sites are at Ellesmere Port and Novoktan. Ellesmere Port's TEL manufacturing capacity is currently 46,00030,000 metric tons (mt) per annum, and that of Novoktan is 9,600 mt per annum. Actual annual operating levels are under review as part of management's response to the decline in TEL markets. There is also a chlorine plant (40,000(46,000 mt per annum) at Ellesmere Port which is owned by the Company but operated on behalf of a third party. The group's Specialty Chemicals manufacturing capacity at Ellesmere Port comprises a detergent plant (6,000 mt per annum) and an EDDS plant (3,000 mt per annum) for the manufacture of Octaquest(R). 7 Item 3 Legal Proceedings There are no material pending legal proceedings involving the Company, its subsidiaries or any of its properties. Furthermore, no director, officer or affiliate of the Company or any associate of any director or officer is involved, or has a material interest in, any proceedings which would have a material adverse effect on the Company. Item 103 of Regulation S-K requires disclosure of administrative or judicial proceedings arising under any federal, state or local provisions dealing with protection of the environment, if the monetary sanctions might exceed $100,000. There are currently no such proceedings. Item 4 Submission of Matters to a Vote of Security Holders No matter was submitted to a vote of security holders during the quarter ended December 31, 1999 . 82000. 6 PART II - ------- Item 5 Market for the Registrant's Common Equity and Related Stockholder Matters The Company's common stock is listed on the New York Stock Exchange. As of March 10, 2000February 28, 2001 there were approximately 2,2602,107 registered holders of the common stock. Quarterly stock prices on page 4340 of the Report are incorporated herein by reference. The borrowings entered into by the Company in relation to the spin-off from GLCC and the acquisition of OBOAdler restrict the Company's ability to pay dividends or buy back stock to a maximum of $15 million per annum in aggregate. Item 6 Selected Financial Data The Financial Highlights on the inside coverpage 11 of the Report and the Quarterly Summary on page 4340 of the Report are incorporated herein by reference. Item 7 Management's Discussion and Analysis of Results of Operation and Financial Condition The discussion on pages 14 through 2119 of the Report is incorporated herein by reference. Item 7a Quantitative and Qualitative Disclosure About Market Risk Information relating to the Company's exposure to market risk on pages 41 and 42page 39 of the Report areis incorporated herein by reference. Item 8 Financial Statements and Supplementary Data The consolidated financial statements, together with the report of PricewaterhouseCoopers dated February 9, 20008, 2001 and quarterly financial information, which are on pages 14 through 4340 of the Report, are incorporated herein by reference. The Financial Highlights on the inside front coverpage 11 of the Report are also incorporated herein by reference. Item 9 Changes In and Disagreement with Accountants on Accounting and Financial Disclosures Until May 22, 1998 the Company was a subsidiary of GLCC. Accordingly the Combined Financial Statements for the period ended December 31, 1997 were audited by Ernst & Young LLP, the auditors of GLCC. The Company's management sought independent advice from PricewaterhouseCoopers on certain aspects of the spin-offspin- off from Great Lakes. Following the consummation of the spin-off and the creation of Octel as a group independent of GLCC, the Board of Directors believed that it was appropriate to appoint PricewaterhouseCoopers as the auditors of Octel Corp., and all its UK and US subsidiaries. PricewaterhouseCoopers were duly appointed on August 11, 1998. Ernst & Young were never appointed as auditors of Octel Corp., so their resignation was not required. 97 PART III - -------- Item 10 Directors and Executive Officers of the Registrant Information under the heading "Management" set out in the proxy statement relating to the 19992001 Annual Meeting of stockholdersStockholders dated May 9, 20008, 2001 ("The Proxy Statement") is incorporated herein by reference. Item 11 Executive Compensation The information under the heading "Executive Compensation and Other Information" in The Proxy Statement is incorporated herein by reference. Item 12 Security Ownership of Certain Beneficial Owners and Management The information under the heading "Security Ownership of Certain Beneficial Owners and Management" in The Proxy Statement is incorporated herein by reference. Item 13 Certain Relationships and Related Transactions Note 16 on page 42 of the Financial Statements is incorporated herein by reference. 10There were no transactions which require disclosure. 8 PART IV Item 14 Exhibits, Financial Statement Schedules and Reports on Form 8-K (a)(1) Financial Statements The Consolidated Financial Statements of Octel Corp. and its subsidiaries and related notes thereto, together with the report thereon of PricewaterhouseCoopers dated February 9, 20008, 2001 appearing on pages 14 through 4340 of the 19992000 Annual Report to Stockholders, are incorporated by reference in Item 8. (2) Financial Statement Schedules All financial statement schedules have been omitted since the information required to be submitted has been included in the financial statements or because they are either not applicable or not required under the Rules of Regulations S-X. (3) Exhibits 2.1 Transfer and Distribution Agreement, dated as of April 24, 1998, between Great Lakes Chemical Corporation ("GLCC") and the Registrant. (3) 3.1 Amended and Restated Certificate of Incorporation of the Registrant. (1) 3.2 Amended and Restated By-laws of the Registrant. (1) 4.1 Form of Common Stock Certificate. (2) 4.2 Form of Rights Agreement between the Registrant and First Chicago Trust Company of New York, as Rights Agent. (2) 4.3 Form of Certificate of Designations, Rights and Preferences of Series A Junior Participating Preferred Stock of the Registrant. (2) 4.4 Indenture dated as of May 1, 1998 among the Registrant, Octel Developments PLC and the IBJ Schroder Bank and Trust Company, as trustee. (4) 4.5 Form of 10% Senior Notes (contained in Exhibit 4.4 as Exhibit A). (4) 4.6 Registration Rights Agreement dated as of April 30, 1998 among the Registrant, Octel Developments PLC and the initial purchasers. (1) 4.7 Purchase Agreement dated as of April 30, 1998 among the Initial Purchasers, Octel Developments PLC and the Registrant. (4) 7.1 Share purchase agreement between OBOAdler Holdings Limited and The Associated Octel Company Limited relating to the sale and purchase of the whole of the issued share capital of OBOAdler Company Limited, dated June 1, 1999. (6). 7.2 $100,000,000 term loan agreement between Octel Corp., Octel Associates, Barclays Capital, Barclays Bank plc and others, dated June 3, 1999 (6). 10.1 Tax Disaffiliation Agreement between GLCC and the Registrant. (1) 10.2 Corporate Services Transition Agreement between GLCC and the Registrant. (1) 10.3 Supply Agreement between GLCC and the Registrant for the supply of ethylene dibromide. (1) 10.4 Supply Agreement between GLCC and the Registrant for the Supply of anhydrous hydrogen bromide. (1) 11 10.5 Supply Agreement for the Supply of 10% sodium hydroxide solution. (1) 9 10.6 Ethyl Corporation Market and Sales Agreement. (4) 10.7 Octel Corp. Non Employee Directors Stock Option Plan. (4) 10.8 Employment Agreement between Associated Octel Limited and Steve W Williams, Geoff J Hignett, Graham M Leathes and Robert A Lee. (1) 10.9 Employment Agreement between Associated Octel Limited and Dennis J Kerrison. (1) 10.10 Agreement between GLCC and the Registrant for the Toll Manufacturing of Stadis Product. (4) 10.11 Octel Corp. Time Restricted Stock Option Plan. (3) 10.12 Octel Corp. Performance Related Stock Option PlanPlan. (3) 10.13 Associated Octel Savings-Related Stock Option Plan. (3) 10.14 Form of Octel Corp. Approved Company Share Option Plan.(8) 10.15 Form of Octel Corp. Profit Sharing Share Scheme.(8) 10.16 Employment Agreement between The Associated Octel Company Limited and Alan G Jarvis. (9) 10.17 Employment offer letter from The Associated Octel Company Limited to John P Tayler. (9) 10.18 Consultancy Agreement between Octel Corp. and Robert E Bew. (9) 10.19 Employment offer letter from the The Associated Octel Company Limited to Ian A Watling. 10.20 Employment offer letter from The Associated Octel Company Limited to Philip J Boon. 12.1 Statement Regarding Computation of Financial Ratios. 13.1 19992000 Annual Report of Octel Corp. 13.2 Opinion of Ernst & Young LLP on 1997 Combined Financial Statements .Statements. (9) 21.1 Subsidiaries of the Registrant. 24.1 Powers of Attorney of Directors and Officers of the Registrant (4). 27.1 Consolidated Financial Data Schedule. 99.1 Consolidated Financial Statements of OBOAdler Company Limited as of June 30, 1999 and for the year then ended (7). (1) Incorporated by reference to the Company's amendment dated April 21, 1998, to a previously filed Form 10-/A. (2) Incorporated by reference to the Company's Form 10-/A previously filed on April 10, 1998. (3) Incorporated by reference to the Company's amendment dated May 4, 1998 to a previously filed form 10-/A. (4) Incorporated by reference to the Company's form S-4 previously filed on October 1, 1998. (5) Filed with the Company's form 10Q on November 10, 1998. (6) Filed with the Company's form 8-K on November 12, 1999. (7) Filed with the Company's form 8-K/A on January 20, 2000. (8) Filed with the Company's form 10K10-K on March 26, 1999. 12(9) Filed with the Company's form 10-K on March 27, 2000. 10 (b) Reports on Form 8-K A Form 8-K was filed on November 12, 1999 announcing the November 9, 1999 acquisition of OBOAdler Company Limited. A Form 8-K/A was filed on January 29, 2000 which provided audited financial statements and proforma financial statements related to the acquired business and the combined company respectively. 13On July 21, 2000 a Form 8-K was filed announcing an amendment of the Company's Rights Plan, raising the threshold of its acquiring person provision from 15% to 22%. 11 SIGNATURES Pursuant to the requirements of Section 13 or 15(d) 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. OCTEL CORP. By: /s/ Dennis J Kerrison (Registrant) DENNIS J KERRISON Date: President, Chief Executive Officer and March 20, 20002001 Director Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the date indicated: March 20, 20002001 /s/ Alan G Jarvis ----------------------------------------------------------------------- Alan G Jarvis, Vice President and Chief Financial Officer March 20, 20002001 /s/ Robert E Bew ----------------------------------------------------------------------- Dr Robert E Bew, Chairman and Director March 20, 20002001 /s/ Dennis J Kerrison ----------------------------------------------------------------------- Dennis J Kerrison, President, Chief Executive Officer and Director March 20, 20002001 /s/ Martin M Hale ----------------------------------------------------------------------- Martin M Hale, Director March 20, 20002001 /s/ Thomas M Fulton ------------------------------- Martin---------------------------------------- Thomas M Hale,Fulton, Director March 20, 20002001 /s/ James Puckridge ----------------------------------------------------------------------- James Puckridge, Director March 20, 20002001 /s/ Benito Fiore ----------------------------------------------------------------------- Dr Benito Fiore, Director March 20, 20002001 /s/ Charles M Hale ----------------------------------------------------------------------- Charles M Hale, Director March 20, 2000 /s/ Steven W Williams ------------------------------- Steven W Williams, Vice President, Group Operations March 20, 20002001 /s/ H Alan Hanslip ----------------------------------------------------------------------- H Alan Hanslip, Vice President, Human Resources March 20, 20002001 /s/ Geoffrey J Hignett ----------------------------------------------------------------------- Dr Geoffrey J Hignett, Vice President, SpecialtyDirector of Corporate Development March 20, 2001 /s/ John P Tayler ---------------------------------------- Corporate Secretary and General Counsel March 20, 2001 /s/ Philip J Boon --------------------------------- Philip J Boon, Business Director, Petroleum Specialties March 20, 2001 /s/ Ian A Watling --------------------------------- Ian A Watling, Business Director, Performance Chemicals 1412