Siliconware Precision defends against $1 billion unsolicited tender offer by Advanced Semiconductor Engineering

Client(s) Siliconware Precision Industries Co., Ltd.

Jones Day advised Siliconware Precision Industries Co., Ltd. (SPIL) in relation to an unsolicited tender offer by Advanced Semiconductor Engineering (ASE) for up to 25% of SPIL common shares and ADRs. In the unsolicited tender offer, ASE offered NTD 45 cash per common share (US dollar equivalent of NTD 225 cash per ADR) (each representing 5 of the Company's common shares) (collectively the "Proposed Cash Considerations"), to acquire the common shares and ADRs of the Company, with a maximum number of 779,000,000 shares (including common shares represented by ADRs) and a minimum number of 155,818,056 shares (not including common shares represented by ADRs). The maximum consideration payable by ASE under the tender offer was NTD 35 billion (approximately US$1 billion).