[Dear [SPIL FINI/FIDI shareholders], U.S. Offer ROC Offer Tender Offer TFTC ASE’s tender offers for SPIL shares up to 770,000,000 common shares in U.S. (“ If you wish to participate in the ROC Offer, you should contact your custodian bank as soon as possible and instruct your custodian bank no later than March 11, 2016 to send the necessary instructions] []

[] [Clarification and Explanation in Connection with ASE’s Tender Offer for SPIL Shares The Taiwan Fair Trade Commission (“FTC”) is currently reviewing the antitrust filing in connection with the offer by Advanced Semiconductor Engineering, Inc. (“ASE”) to purchase up to 770,000,000 common shares of Siliconware Precision Industries Co., Ltd. (“SPIL”) (the “Acquisition”). ASE originally did not wish to issue a public]

[] [Investor communication  SPIL management continues to act at odds with corporate governance best practices and with total disregard for shareholder value • SPIL has declined multiple friendly attempts by ASE, the single largest shareholder in the company, to meet and discuss cooperation opportunities that would benefit shareholders of both companies • SPIL commenced baseless litigation against ASE using company]