UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

(Amendment No. 1)

(Mark One)
o		REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934
		or
þ		ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
		For the fiscal year ended March 31, 2010
		or
o		TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
		or
o		SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of event requiring this shell company report ____________

For the transition period from ____________ to ____________

COMMISSION FILE NUMBER: 1-7239

KABUSHIKI KAISHA KOMATSU SEISAKUSHO

(Exact name of Registrant as specified in its charter)

KOMATSU LTD.

(Translation of Registrant’s name into English)

JAPAN
(Jurisdiction of incorporation or organization)

2-3-6 Akasaka, Minato-ku, Tokyo 107-8414, Japan
(Address of principal executive offices)

Yasushi Sakano or Masaki Takeda
Telephone: +81-3-5561-2628
Facsimile: +81-3-3586-0374
Address: 2-3-6 Akasaka, Minato-ku, Tokyo 107-8414, Japan
(Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person)

Securities registered or to be registered pursuant to Section 12(b) of the Act.

Title of each class		Name of each exchange on which registered
None		N/A

Securities registered or to be registered pursuant to Section 12(g) of the Act.

None

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act.

(Title of Class)

Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report.

968,039,976 shares (excluding 30,704,084 shares of Treasury Stock)

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Yes þ No o

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.

Yes o No þ

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.

Yes þ No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted 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 and post such files).

Yes þ No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act. (Check one):

Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:

U.S. GAAP þ
International Financial Reporting Standards as issued by the International Accounting Standards Board o
Other o

If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow.

Item 17 o Item 18 o

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes o No þ

 

 

EXPLANATORY NOTE

This Amendment No. 1 to Form 20-F (the “Form 20-F/A”) amends our annual report on Form 20-F for the fiscal year ended March 31, 2010, originally filed with the U.S. Securities and Exchange Commission on June 29, 2010 (the “Form 20-F”). The sole purpose of this Form 20-F/A is to amend the Form 20-F to provide Interactive Data File disclosure as Exhibit 101 to this Form 20-F/A in accordance with Rule 405 of Regulation S-T. The Interactive Data File disclosure attached as Exhibit 101 to this Form 20-F/A is the first Interactive Data File that we are required to submit under Rule 405 of Regulation S-T.

Other than as expressly set forth above, this Form 20-F/A does not, and does not purport to, amend, update or restate the information in any Item of the Form 20-F.

Item 19. Exhibits

1.1		Articles of Incorporation of Komatsu Ltd., as amended (Translation)
1.2		Regulations of The Board of Directors (Translation)
2		Share Handling Regulations, as amended (Translation)
8		Significant subsidiaries of Komatsu Ltd., including additional subsidiaries that management has deemed to be significant, as of March 31, 2010 (See “Item 4. Information on the Company — Organizational Structure”)
11		Code of Ethics for Senior Officers (Translation)
12 a.		Certification of the CEO of the Company required pursuant to Rule 15d-14(a).
12 b.		Certification of the CFO of the Company required pursuant to Rule 15d-14(a).
13 a.		Certification of the CEO of the Company required pursuant to Rule 15d-14(b) and Section 1350 of Chapter 63 of Title 18 of the United States Code.
13 b.		Certification of the CFO of the Company required pursuant to Rule 15d-14(b) and Section 1350 of Chapter 63 of Title 18 of the United States Code.
101		Instance Document
101		Schema Document
101		Calculation Linkbase Document
101		Definition Linkbase Document
101		Labels Linkbase Document
101		Presentation Linkbase Document

SIGNATURES

The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F (as amended by this Form 20-F/A) and that it has duly caused and authorized the undersigned to sign this Amendment No. 1 to the Annual Report on Form 20-F on its behalf.