Notice Regarding Change in Board Lot Size on the SGX-ST

[Translation]

To whom it may concern

June 13, 2013

Tosei Corporation

Toranomon Tosei Building, 4-2-3 Toranomon, Minato-ku, Tokyo

President and CEO: Seiichiro Yamaguchi

Ticker code: 8923 (Tokyo Stock Exchange, First Section)

Contact: Director and CFO: Noboru Hirano

TEL: +81-3-3435-2864

Notice Regarding Change in Board Lot Size on the SGX-ST

Further to the announcement made on 5 June 2013 in relation to the proposed stock split and adoption of a unit share system, Tosei Corporation (the "Company") would like to announce that it has received confirmation that the Singapore Exchange Securities Trading Limited ("SGX-ST") does not have any objections to the change in board lot size of the shares of Company ("Shares") on the SGX-ST from 10 Shares to 100 Shares subject to a minimum value of S$500 per board lot at any point when undertaking a share split. The board lot size will be changed from 10 Shares to 100 Shares with effect from 9:00 a.m. on Wednesday, 26 June 2013.

As at the date of this announcement, the Shares are listed but not traded on the SGX-ST.

End of Notice