Despite early media speculation that Elpida Memory's bankruptcy filing would impact its supply-chain partners' business performance, Powertech Technology (PTI) and Walton Advanced Engineering, two of the DRAM maker's backend service providers, have reported better-than-expeced first-quarter profits.

PTI posted net profits of NT$1.13 billion (US$38.9 million) on consolidated revenues of NT$8.76 billion for the first quarter of 2012. EPS for the quarter came to NT$1.42.

DRAM products accounted for about 60% of PTI's overall sales in the first quarter. The ratio is expected to reduce as the firm has diversified its offerings more starting April when its strategic investment in Greatek Electronics took effect.

Walton announced net profits of NT$135 million, or NT$0.27 a share, on consolidated sales of NT$1.85 billion for the first quarter of 2012. Walton indicated that the visibility of its orders has stretched through the end of the second quarter as orders for DRAM products pick up at a gradual pace.

Both PTI and Walton slipped into the red in the fourth quarter of 2011 due to uncollected accounts receivable from Elpida. The pair claimed previously that measures to mitigate the impact had been undertaken.

In other news, Formosa Advanced Technologies (FATC), which provides backend services mainly for Nanya Technology and Inotera Memories, saw its EPS decrease NT$0.25 sequentiallly and NT$0.65 from a year ago to NT$0.13 in the first quarter of 2012. Consolidated revenues for the quarter were NT$2.77 billion, up 2.8% on quarter but down 8.4% on year.