8-K

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                       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


                                 March 16, 2000
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                Date of Report (date of earliest event reported)


                               KOMAG, INCORPORATED
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             (Exact name of Registrant as specified in its charter)


            Delaware                     0-16852                 94-2914864
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(State or other jurisdiction of   (Commission File Number)    (I.R.S. Employer
 incorporation or organization)                              Identification No.)


                             1710 Automation Parkway
                           San Jose, California 95131
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                    (Address of principal executive offices)


       Registrant's telephone number, including area code: (408) 576-2000


                                       N/A
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          (Former name or former address, if changed since last report)

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Item 5. Other Events.

     Komag, Incorporated  issued a  press  release on March 16, 2000, announcing
resolution of a tax matter and the related  adjustment to earnings in the fourth
quarter of the  fiscal  year  ended  January  2, 2000 and a change to  projected
results for the current fiscal quarter, which is filed as Exhibit 99.1 hereto.

Item 7. Financial Statements and Exhibits.

     (a)  Not applicable.

     (b)  Not applicable.

     (c)  Exhibits.

          99.1  Text of press release dated March 16, 2000.

     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.


                                       Komag, Incorporated,
                                       a Delaware corporation


Dated: March 20, 2000                  By: /s/ Thian Hoo Tan
                                           -------------------------------------
                                           Thian Hoo Tan
                                           President and Chief Executive Officer

                                  EXHIBIT INDEX

Exhibit Number    Description
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99.1              Text of press release dated March 16, 2000.

EX-99.1

     FOR IMMEDIATE RELEASE

     San Jose, California (March 16, 2000): Komag,  Incorporated (Nasdaq: KMAG),
a technical  leader in the disk drive component  industry,  today announced that
shipments in the first quarter of 2000 will exceed  previous  estimates.  At the
same time the company announced the upward revision of its financial results for
the fourth  quarter and fiscal year ended  January 2, 2000 due to the  favorable
resolution of certain income tax audits.

     Improved First Quarter Outlook

     At the  time of the  announcement  of the  company's  fourth  quarter  1999
results on January  25,  2000,  the company  expected  first  quarter  2000 unit
shipments to be  sequentially  flat compared to the 8.9 million units shipped in
the fourth  quarter of 1999.  Currently the company  expects unit shipments will
actually  increase  between  12% and 18%.  "There  is strong  demand  for our 10
gigabyte ("GB") per platter disks, especially in 7200 RPM drive platforms," said
T.H.  Tan,  Komag's  president and chief  executive  officer.  "The  performance
advantages of these fast drives is particularly  attractive in the mainstream of
the desktop market. Further our current expectation is that the strong demand we
are now experiencing will continue into the second quarter."

     "In addition to strong  shipment  performance,  the positive  impact of our
restructuring  activities  is beginning to improve our financial  results.  As a
result of the high  utilization  of our  Malaysian  factories  we have  achieved
significantly  lower  production  costs.  While  we  do  not  expect  to  become
profitable at current volume levels,  our first quarter financial results should
show a significantly  lower operating loss than in any quarter last year," added
Mr. Tan.

     Favorable Resolution of Income Tax Audit

     In February  2000,  the company  obtained  favorable  resolution of certain
income tax  return  audits  that were in  process at the end of its last  fiscal
year. These audits were resolved with no taxes owed by the company. As a result,
the company has reduced its related recorded tax liability as of January 2, 2000
by $27 million.  Because this  settlement  occurred  subsequent to the company's
announcement  of fourth quarter and fiscal 1999 results but before the filing of
the company's  Annual Report on Form 10-K for such periods,  generally  accepted
accounting  principles  require the company to reflect the impact of this change
in estimate  on its  financial  results  for the fourth  quarter and fiscal year
ended January 2, 2000.

     After recording this change in estimate,  net income for the fourth quarter
of 1999 was  $5.9  million,  or $.09 per  share,  based on 65.6  million  shares
outstanding. This compares to the previously reported net loss of $21.1 million,
or $.32 per share based on 65.4 million shares outstanding. The revised net loss
for fiscal 1999 was $283.0  million,  or $4.54 per share  based on 62.3  million
shares  outstanding.  The  previously  reported net loss for the fiscal year was
$310.0 million, or $4.98 per share based on 62.3 million shares outstanding. The
preceding per share amounts are on a fully diluted basis.

     Forward Looking Statements

     The  above   information   contains   predictions,   estimates   and  other
forward-looking  statements  that  involve a number of risks and  uncertainties.
While this outlook  represents  Komag's current judgment on the future direction
of  the  business,   actual  results  may  differ  materially  from  any  future
performance suggested above. In particular, the composition and volume of actual
shipments  during the first and  second  quarters  of 2000 and actual  financial
results  may vary from  expectations.  Other  risk  factors  that may affect the
company's financial performance are listed in the company's various SEC filings,
including  its  Form  10-K for the year  ended  January  3,  1999.  The  company
undertakes   no   obligation   to  publicly   release  any  revisions  to  these
forward-looking statements.

     About Komag

     Founded  in  1983,  Komag,  Incorporated  has  produced  over  435  million
thin-film  disks,  the primary  storage medium for digital data used in computer
disk  drives.  The  company  is well  positioned  as the  broad-based  strategic
supplier of choice for the industry's leading disk drive manufacturers.  Through
its  advanced  development  facilities  in the  United  States  and high  volume
production   factories  in  Southeast   Asia,   Komag   provides  high  quality,
leading-edge  disk  products  at a low  overall  cost  to its  customers.  These
attributes  enable  Komag to partner with  customers  in the  execution of their
time-to-market design and time-to-volume manufacturing strategies.

     For more  information  about Komag,  visit  Komag's  Internet  home page at
http://www.komag.com or call Komag's Investor Relations 24-hour Hot Line at

     888-66-KOMAG or 408-576-2901