SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

         Pursuant to Section 13 or 15(d) of the Securities Exchange Act

                                  March 6, 2000
- --------------------------------------------------------------------------------
                                 Date of Report
                        (Date of Earliest Event Reported)

                    TIANRONG BUILDING MATERIAL HOLDINGS, LTD.
- --------------------------------------------------------------------------------
             (Exact Name of Registrant as Specified in its Charter)

                               8 West 38th Street
                                    9th Floor
                            New York, New York 10018
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                    (Address of Principal Executive Offices)

                                  212/398-7833
                               212/398-8695 (fax)
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                         (Registrant's Telephone Number)

                           MAS ACQUISITION XVIII CORP.
                              1710 E. Division St.
                              Evansville, IN 47711
- --------------------------------------------------------------------------------
                        (Former Name and Former Address)


      Utah                           000-27167            59-2729321
      ----                           ---------            ----------
(State or other                     (Commission          (IRS Employer
jurisdiction of incorporation)       File Number)         Identification No.)

ITEM 1.      CHANGES IN CONTROL OF REGISTRANT

        (a) Pursuant to a Stock Purchase  Agreement (the "Agreement")  effective
March 6, 2000,  Tianrong  Building Material  Holdings,  Ltd., a Utah corporation
("Tianrong  Building  Material  Holdings,  Ltd.,"  "TNRG"  or,  the  "Company"),
acquired  8,250,000  outstanding shares of MAS XVIII Corp ("MAS XVIII") from MAS
Capital,  Inc., a  shareholders  thereof,  for Two Hundred  Thousand  ($200,000)
Dollars. As a result, MAS XVIII became a majority-owned subsidiary of TNRG.




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        The Stock  Purchase  Agreement was approved by the unanimous  consent of
the Board of Directors of TNRG on March 6, 2000.

        Prior to the  Agreement,  TNRG had  86,554,854  shares of  common  stock
issued and outstanding.  Following the Agreement,  TNRG had 86,554,854 shares of
common  stock  outstanding.  TNRG  was  incorporated  in the  State  of  Utah on
September 19, 1983.

        Upon  effectiveness  of the Stock Purchase  Agreement,  pursuant to Rule
12g-3(a) of the General Rules and  Regulations  of the  Securities  and Exchange
Commission,  TNRG became the successor issuer to MAS Acquisition  XVIII Corp for
reporting  purposes  under the  Securities  Exchange  Act of 1934 and  elects to
report under the Act effective March 6, 2000.

        A copy of the  Agreement  is filed as an exhibit to this Form 8-K and is
incorporated in its entirety  herein.  The foregoing  description is modified by
such reference.

        (b) The following table contains information regarding the shareholdings
of the Company's current  directors and executive  officers and those persons or
entities who beneficially own more than 5% of the Company's common stock:

NAME                  AMOUNT OF COMMON STOCK          PERCENT OF COMMON STOCK
                      BENEFICIALLY OWNED (1)          BENEFICIALLY OWNED

James A. Tilton            11,257,801(2)                      13%
President,
Director

All directors and          11,257,801(2)(3)                   13%
executive officers
as a group

DIZON Investments          10,000,000(4)                      12%
International, Inc.
8 West 38th Street
9th Floor
New York, NY 10018

(1) Based upon 86,554,854 outstanding shares of common stock.

(2)(3) Includes 10,000,00 shares owned by Dizon Investments International, Inc.,
a company of which James Tilton is an officer and director.

(4) A company of which James Tilton is an officer and director.




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COMPANY'S BUSINESS AND SUBSIDIARIES

        Tianrong Building  Material  Holdings,  Ltd.  (OTCBB:TNRG) is a business
development  company that intends to engage in the  acquisition of businesses of
various  sectors  through  the  application  of  its  management  expertise  and
shareholder value.

        Presently, TNRG has an ownership interest in the following subsidiaries:

        - TNRG has 80% interest in Chongqing  Dazheng  Market Co.,  Ltd.,  which
owns a 200,000  square foot  shopping  center with over100  retail and wholesale
stores located in the Province of Szechuan, People's Republic of China. Pursuant
to the  acquisition,  the  Company  incurred  an  obligation  in the  form  of a
Promissory  Note in the amount of  $21,000,000  in favor of the former owners of
Chongqing Dazheng Market Co., Ltd.

        - TNRG's Medical Group,  Inc., which includes and FDA approved  personal
computer- based  electrocardiogram  monitor and a soon to be launched health and
medical e-commerce web site.

        - Tianrong Internet Products and Services, Inc. (OTCBB:TIPS), which is a
U.S.  holding  company  whose  strategy  is  the  acquisition  of  domestic  and
international  Internet Service Providers and related companies.  TIPS owns five
development stage, Internet related companies.

        - The "New Hampshire Thunderloons", a basketball franchise of the United
States  Basketball  League.  The  company  is  presently  listed on the Over The
Counter Bulletin Board stock exchange (OTC BB: USBL).

        - Nighthawk Entertainment  Corporation, a holding company with interests
in the  "Cavalcade  of Boxing"  film  library CD ROM game  development  and such
technologies relating to exploration of seas and oceans.

        However, TNRG presently operates at a loss and has not received revenues
from operations sufficient to maintain its operations. TNRG has raised funds for
operations  through the sale of its  securities  and may  continue to do so. See
"RISK FACTORS".

PROPERTY

        TNRG maintains its administrative offices at 8 West 38th Street, 9th
Floor,  New York, N.Y. 10018.  The Company does not lease its own space and pays
no rent. The offices are leased by other companies affiliated with the Company's
president and the office space and all office services are shared.

DESCRIPTION OF SECURITIES

        The Company has an authorized  capitalization  of 200,000,000  shares of
common stock,  no par value per share and no authorized  preferred  stock.  Upon
execution of this Agreement, the Company had issued and outstanding,  86,554,854
shares of common stock.




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MARKET FOR TNRG' SECURITIES

        TNRG is a  non-reporting  publicly  traded  company  with certain of its
securities  exempt  from  registration  under  the  Securities  Act of 1933,  as
amended,  pursuant  to  Rule  504 of  Regulation  D of  the  General  Rules  and
Regulations of the Securities  and Exchange  Commission.  TNRG's common stock is
traded on the NASD OTC Bulletin  Board under the symbol "TNRG." The NASDAQ Stock
Market has  implemented a change in its rules  requiring  all companies  trading
securities on the NASD OTC Bulletin Board to become  reporting  companies  under
the Securities Exchange Act of 1934.

        The Company was  required to become a reporting  company by the close of
business on April 8, 2000.  TNRG acquired  96.8% the  outstanding  shares of MAS
XVIII to become successor issuer to it pursuant to Rule 12g-3 in order to comply
with the reporting company requirements implemented by the NASDAQ Stock Market.

MANAGEMENT

        Name        Age                         Title
        ----        ---                         -----

James A. Tilton     38                      President, Chief
                                   Executive Officer and Director

Jane Zheng          37             Secretary, Treasurer and Director


        James A.  Tilton  serves as  President,  Chief  Executive  Officer and a
director  of the  Company  and is also the  president  and sole  director of its
majority-owned  subsidiary, MAS XVIII. Mr. Tilton was appointed President, Chief
Executive  Officer and a director of the Company in July 1995.  Since July 1998,
Mr. Tilton is also been President and a director of Tianrong Internet Products &
Services,  Inc., an OTC Bulletin Board listed holding  company  (trading  symbol
"TIPS") with business in China and southeast  Asia.  Since  November  1995,  Mr.
Tilton has also been the  President  and a director  of China Food and  Beverage
Company,  an OTC Bulletin Board listed  holding  company  (trading  symbol CHIF)
primarily  for a beer  production  company  in  China.  Mr.  Tilton is also sole
shareholder,   sole  officer  and  sole  director  of   International   Beverage
Development  Corp.,  a  shareholder  of the Company.  Mr.  Tilton is expected to
continue in such positions.  Mr. Tilton is the husband of Jane Zheng, secretary,
treasurer and a director of the Company.

        Jane Zheng serves as Secretary, Treasurer and a director of the Company.
Ms. Zheng was appointed as  Secretary,  Treasurer and Director of the Company in
November 1995. Since July 1998, Ms. Zheng has also been secretary, treasurer and
a director of Tianrong Products & Services,  Inc. Since November 1995, Ms. Zheng
has also been  secretary,  treasurer  and a director of China Food and  Beverage




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Company. Ms. Zheng is expected to continue in such positions. In 1986, Ms. Zheng
received her degree in engineering from Shanghai University, Shanghai, China. In
1994, Ms. Zheng received a Masters of Business  Administration degree in Finance
from Adelphi  University,  Garden City, New York. Ms. Zheng is the wife of James
A. Tilton.

EXECUTIVE COMPENSATION

        Ms. Zheng is not currently  receiving  any salary or other  remuneration
from the Company.  Mr.  Tilton is not  currently  receiving  any salary or other
remuneration from the Company.

        All  directors of the Company hold office until the next annual  meeting
of shareholders or until their successors are elected and qualified.  Currently,
there are two directors of the Company. The by-laws permit the Board of Director
to fill any vacancy and such director may serve until the next annual meeting of
shareholders or until his successor is elected and qualified.  Officers serve at
the discretion of the Board of Directors.

RISK FACTORS

        TNRG IS CURRENTLY OPERATING AT A LOSS. If losses continue, TNRG may need
to raise  additional  capital  through the  placement of its  securities or from
other  debt or  equity  financing.  If the  Company  is not able to  raise  such
financing or obtain alternative  sources of funding,  management may be required
to curtail  operations.  There is no assurance  that the Company will be able to
continue to operate if additional sales of its securities cannot be generated or
other sources of financing located.

        The Company  incurred an obligation in the form of a Promissory  Note in
the amount of $21,000,000,  8% interest per annum, in favor of the former owners
of Chongqing Dazheng Market Co., Ltd., payable on or before December 9, 2004.

        THE  COMPANY  HAS NOT  BEEN  AUDITED  BY  INDEPENDENT  CERTIFIED  PUBLIC
ACCOUNTANTS.  Although  the  Company  is  required  to  file  audited  financial
statements  no later than 60 days from the date that this  report is required to
be  filed,  no such  audited  financial  statements  have been  prepared  or are
available for  inspection as of the date hereof.  Consequently,  there can be no
assurance that any  representations  as to the financial  condition or assets of
the Company are as stated herein.

        COMPETITION  FROM  LARGER  AND MORE  ESTABLISHED  COMPANIES  MAY  HAMPER
MARKETABILITY.

        ISSUANCE  OF FUTURE  SHARES  MAY  DILUTE  INVESTORS'  SHARE  VALUE.  The
Company's Articles of Incorporation, as amended, of TNRG authorizes the issuance
of 200,000,000 shares of common stock. The future issuance of all or part of the
remaining  authorized  common  stock may result in  substantial  dilution in the
percentage of the Company's common stock held by its then existing shareholders.
Moreover,  any common  stock  issued in the future may be valued on an arbitrary
basis by TNRG.  The  issuance  of the  Company's  shares for future  services or
acquisitions  or other  corporate  actions may have the effect of  diluting  the




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value of the shares held by investors,  and might have an adverse  effect on any
trading market, should a trading market develop for the Company's common stock.

        PENNY STOCK  REGULATION.  Penny stocks  generally are equity  securities
with a price of less than $5.00 per share other than  securities  registered  on
certain  national  securities  exchanges or quoted on the NASDAQ  Stock  Market,
provided that current price and volume  information with respect to transactions
in such  securities  is  provided  by the  exchange  or  system.  The  Company's
securities  may be subject to "penny stock rules" that impose  additional  sales
practice  requirements  on  broker-dealers  who sell such  securities to persons
other than established  customers and accredited investors (generally those with
assets in excess of $1,000,000 or annual income  exceeding  $200,000 or $300,000
together  with their  spouse).  For  transactions  covered by these  rules,  the
broker-dealer must make a special suitability  determination for the purchase of
such  securities  and have  received  the  purchaser's  written  consent  to the
transaction prior to the purchase. Additionally, for any transaction involving a
penny stock, unless exempt, the "penny stock rules" require the delivery,  prior
to the  transaction,  of a  disclosure  schedule  prescribed  by the  Commission
relating to the penny stock  market.  The  broker-dealer  also must disclose the
commissions payable to both the broker-dealer and the registered  representative
and current quotations for the securities.  Finally,  monthly statements must be
sent disclosing  recent price information on the limited market in penny stocks.
Consequently, the "penny stock rules" may restrict the ability of broker-dealers
to  sell  the  Company's   securities.   The  foregoing   required  penny  stock
restrictions  will not  apply to the  Company's  securities  if such  securities
maintain a market price of $5.00 or greater.  There can be no assurance that the
price of the Company's securities will reach or maintain such a level.

ITEM 2.          ACQUISITION OR DISPOSITION OF ASSETS

        Not Applicable.

ITEM 3.          BANKRUPTCY OR RECEIVERSHIP

        Not applicable.

ITEM 4.          CHANGES IN REGISTRANT'S CERTIFYING ACCOUNTANT

        Not applicable

ITEM 5.          OTHER EVENTS

        Successor Issuer Election.

        Pursuant to Rule  12g-3(a) of the General Rules and  Regulations  of the
Securities and Exchange  Commission,  upon  effectiveness of the Agreement,  the
Company  became the successor  issuer to MAS XVIII for reporting  purposes under
the Securities Exchange Act of 1934 and elects to report under the Act effective
March 6, 2000.




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ITEM 6.          RESIGNATIONS OF DIRECTORS AND EXECUTIVE OFFICERS

        Pursuant to the terms of the  aforementioned  Agreement,  the Registrant
has accepted the resignation of Aaron Tsai, the  Registrant's  sole Director and
Officer  as of March 6,  2000,  and  appointed  James  Tilton as  President  and
Director of the Registrant.

ITEM 7.          FINANCIAL STATEMENTS

        No financial  statements are filed herewith.  The Registrant is required
to file  financial  statements by amendment  hereto not later than 60 days after
the date that this Current Report on Form 8-K must be filed.

ITEM 8.          CHANGE IN FISCAL YEAR

        TNRG has a December 31 fiscal year end.  The fiscal year of MAS XVIII is
December 31. The Company  will file a  Transitional  Report on Form  10-QSB,  if
required.

EXHIBITS

2.1     Stock Purchase Agreement
        between MAS Acquisition XVII Corp.
        and TNRG, dated March 6, 2000.

*3.1    Articles of Incorporation of TNRG,
        as amended

*3.2    By-Laws of TNRG

*24.1   Consent of accountants

*27.1   Financial Data Schedule

- -----------
*To be filed by amendment


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                                   SIGNATURES

        Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant  has duly caused this Current  Report on Form 8-K to be signed on its
behalf by the undersigned hereunto duly authorized.

                       By /s/ James A. Tilton
                       ----------------------
                       James A. Tilton, President

                 Date: March 6, 2000