Date January 27, 2009

/s/ Toshiaki Kuzuoka

Planned Number of Shares to

Be Purchased

Planned Minimum Number of

Shares to Be Purchased

Planned Maximum Number of

Shares to Be Purchased

13,406,000 shares

3.

The “Total number of voting rights held by all the shareholders in the Target” (Every 100 shares represent one trading unit (1 tangen)) indicates the number of voting rights of all the shareholders of the Target as of September 30, 2008, as reported in the Quarterly Report for the 2^nd quarter of its 87^th Business Period, submitted by Hitachi Koki on November 12, 2008. Because shares of less than one trading unit also fall within the scope of this Tender Offer, the “Shareholding ratio after the Tender Offer” was calculated based on 1,015,987 units for the “Total number of voting rights held by all the shareholders in the Target.” This was determined by adding 1,660 units (the number of voting rights corresponding to 166,038 shares of less than one trading unit after deducting 38 shares, the number of Hitachi Koki’s treasury shares that were less than one unit as of September 30, 2008 from 166,076 shares, the number of shares of less than one unit as of the same date as reported by Hitachi Koki in the aforementioned Business Report) to 1,012,197 units, the “Total number of voting rights held by all the shareholders in the Target.” Because Hitachi Koki shares that have been or could be issued or transferred due to the exercise of stock acquisition rights from September 30, 2008 to the last day of the Tender Offer Period are also eligible for the Tender Offer, 2,130 units were also added, being the maximum number of voting rights attached to Hitachi Koki shares that have been or could be issued or transferred due to the exercise of 213 stock acquisition rights as of September 30, 2008, as reported in the aforementioned Business Report.

3.

The “Total number of voting rights held by all the shareholders in the Target” (Every 100 shares represent one trading unit (1 tangen)) indicates the number of voting rights of all the shareholders of the Target as of September 30, 2008, as reported in the Quarterly Report for the 2^nd quarter of its 87^th Business Period, submitted by Hitachi Koki on November 12, 2008. Because shares of less than one trading unit also fall within the scope of this Tender Offer, the “Shareholding ratio after the Tender Offer” was calculated based on 1,015,987 units for the “Total number of voting rights held by all the shareholders in the Target.” This was determined by adding 1,660 units (the number of voting rights corresponding to 166,038 shares of less than one trading unit after deducting 38 shares, the number of Hitachi Koki’s treasury shares that were less than one unit as of September 30, 2008 from 166,076 shares, the number of shares of less than one unit as of the same date as reported by Hitachi Koki in the aforementioned Business Report) to 1,012,197 units, the “Total number of voting rights held by all the shareholders in the Target.” Because Hitachi Koki shares that have been or could be issued or transferred due to the exercise of stock acquisition rights from September 30, 2008 to the last day of the Tender Offer Period are also eligible for the Tender Offer, 2,130 units were also added, being the maximum number of voting rights attached to Hitachi Koki shares that have been or could be issued or transferred due to the exercise of 213 stock acquisition rights as of September 30, 2008, as reported in the aforementioned Business Report.

Planned Number of Shares to

Be Purchased

Planned Minimum Number of

Shares to Be Purchased

Planned Maximum Number of

Shares to Be Purchased

12,473,000 shares

This announcement is a press release announcing the tender offer and has not been prepared for the purpose of soliciting an offer to sell stocks. If shareholders wish to make an offer to sell their stocks, they should first read the Explanatory Document for the tender offer and make their own decision. This press release does not constitute, nor form part of, any offer or invitation to buy, sell, exchange or otherwise dispose of, or issue, or any solicitation of any offer to sell or issue, exchange or otherwise dispose of, buy or subscribe for, any securities. In addition, this press release does not constitute, or form part of, any offer or invitation to sell, or any solicitation of any offer to purchase any securities in any jurisdiction, nor shall it (or any part of it) or the fact of its distribution form the basis of or be relied on in connection with, any contract therefore.

The tender offer is not being made, directly or indirectly, in or into the United States, or by the use of the mails, or by any other means or instrumentality (including, but not limited to, telephones, telexes, facsimile transmissions, e-mails and internet communications) of interstate or foreign commerce, or by any facility of a national securities exchange of the United States of America. Accordingly, copies of offering documents are not being, and must not be, mailed or otherwise be forwarded, transmitted, distributed or sent in, into or from the United States of America. No person may apply for this tender offer by the use of such means or instrumentality or of such facility, or from the United States of America. Any purported application of the tender offer resulting directly or indirectly from a violation of these restrictions will not be accepted. No securities or other consideration is being solicited in the United States and if sent in response by a resident of the United States of America will not be accepted.

Some countries or regions may impose restrictions on the announcement, issue or distribution of this press release. In such cases, please take note of such restrictions and comply with them. In countries or regions where the implementation of the tender offer is illegal, even upon receiving this press release, such receipt shall not constitute a solicitation of an offer to sell or an offer to buy stocks relating to the tender offer and shall be deemed a distribution of materials for informative purposes only.