Siliconware Precision Industries (SPIL) saw its revenues gain 3.5% sequentially and 28% on year to an all-time high of NT$7.68 billion (US$256.61 million) in June, according to the company.

Second-quarter revenues reached NT$21.93 billion, which were up 21.4% on quarter and also higher than its guidance of NT$20.1-20.8 billion.

Industry sources expect SPIL to post a gross margin of over 26% in the second quarter, higher than the company's projection of 25%, according to a Chinese-language Economic Daily News (EDN) report.

SPIL's EPS for the second quarter is likely to reach over NT$1 compared to its guidance of NT$0.87-0.96, the paper added. SPIL posted an EPS of NT$0.67 in the first quarter.

SPIL's share prices edged down NT$0.8 to close at NT$54.5 on Taiwan's stock market on July 8 after hitting a six-year high of NT$55.3 in the previous session.