Timeline

Voting rights breakdown

Notice details

Beneficial owner

TIAA-CREF Investment Management, LLC

Facts and circumstances triggering the obligation to notify (art. 21 para. 1 b SESTO-FINMA) (e.g.: acquisition, sale, securities lending and similar transactions pursuant to Art. 14 SESTO-FNMA, exercise or non exercise of financial instruments pursuant to Art. 15 SESTO-FINMA, changes in the company s registered capital, decisions by a court or public authority, grounds for action in concert or a change to the composition of a group) The College Retirement Equities Fund ( CREF ) hereby informs you that on February 18, 2010, CREF purchased 10, 286 shares Burckhardt Compression Holding Ag, CREF owns these shares through one of its investement accounts, the Stock Account. It is our understanding the total voting shares outstanding of Burckhardt Compression Holding Ag are 3,400,000 bringing CREF s ownership in your company to a 1.151% level. For your information, CREF is a U.S. based investment company, which is registered with the Securities and Exchange Commmisson ( SEC ). CREF has multiple investment accounts, each with separate investment objectives and policies. All assets in the accounts are beneficially owned by CREF, and all the accounts are managed by TIAA-CREF Investment Management, LLC, and SEC registered investment adviser. Additionally, affiliates of CREF purchased 23,843 shares, bringing total holdings in your company by affiliates of CREF to 73,083. These holdings are owned by the TIAA-CREF Funds ( Funds ), and the TIAA-CREEF Life Funds ( Life Funds ), each of which are SEC registered investment companies. The TIAA-CREF Funds and Life Funds are managed by Teachers Advisors, Inc., an SEC registered investment adviser that is affiliated with TIAA-CREF Investment Management, LLS. These affiliated funds, aggregated with those of CREF, own a total of 112,222, or 3.301% of the outstanding voting shares of your company. Because Teachers Advisors, Inc. and TIAA-CREF investment Management, LLC follow the same policies when voting these funds, we are aggregating the holdings for purposes of this letter.