UNITED STATES
                       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 of 1934

                          Date of Report: March 6, 2000
                        (Date of earliest event reported)

                    TIANRONG BUILDING MATERIAL HOLDINGS, LTD.
             (Exact Name of Registrant as Specified in its Charter)
                 (Formerly Known as MAS ACQUISITION XVIII CORP.)

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

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

             Utah                     0-27167                    59-2729321
             ----                     -------                    ----------
(State or other jurisdiction        (Commission              (I.R.S. Employer
      of incorporation)              File Number)           Identification No.)





ITEM 4.  CHANGES IN REGISTRANT'S CERTIFYING ACCOUNTANT.

         (a) (1) On March 6, 2000 the Registrant changed  accountants from Tubbs
& Bartnick,  P.A., 2300 Glades Rd., Ste. 415, Boca Raton,  Florida 33413 to HJ &
Associates, 50 South Main Street, Salt Lake City, Utah 84144; (801) 328-4408.

                  (i)   The Company  decided not to reappoint  Tubbs & Bartnick,
P.A. as its independent accountant;

                  (ii)  The  financial   statements   reported  on  by  Tubbs  &
Bartnick,  P.A.  were not  subject  to an  adverse or  qualified  opinion,  or a
disclaimer  of opinion and were not modified as to  uncertainty,  audit scope or
accounting  principles  during the past two fiscal years and the interim  period
through January 31, 2001;

                  (iii)  The decision to change  accountants was approved by the
Registrant's Board of Directors; and

                  (iv)   (A)  There were no disagreements  related to accounting
                              principles  or  practices,   financial   statement
                              disclosure,  or auditing scope or procedure during
                              the past two fiscal  years and the interim  period
                              through January 31, 2001;

                         (B)  Not applicable;

                         (C)  Not applicable;

                         (D)  Not applicable; and

                         (E)  Not applicable.





             (2) On March 6, 2000, the Registrant engaged HJ & Associates as its
independent accountants.

                  (i)  The Registrant  did not consult with HJ & Associates, its
new independent accountants, regarding any matter prior to its engagement; and

                  (ii) Not applicable.

             (3) The  Registrant  has  provided  to Tubbs & Bartnick,  P.A,  its
former accountants,  a copy of the disclosures  contained in this Item 4 and the
Registrant has requested a letter from Tubbs & Bartnick,  P.A,  addressed to the
Commission,  confirming the statements  made by the Registrant in this Item 4. A
copy of such letter is attached hereto.

         (b)      Not applicable.

ITEM 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.

         (a)      Not applicable.

         (b)      Not applicable.

         (c)      Index to Exhibits.
                  Exhibit "16" Description:  Letter from Tubbs & Bartnick,  P.A.
                  pursuant to Item 304(a)(3) of Regulation S-B.





                                   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 hereunto duly authorized.

         Date: January 31, 2001


                                    TIANRONG BUILDING MATERIAL HOLDINGS, LTD.

                                    By:/s/ James Tilton
                                    -------------------
                                           James Tilton
                                           President