Inotera Memories and Nanya Technology have both reported revenue and profit declines for 2015, as a result of falling DRAM ASPs.

Inotera, which had record revenues of NT$82.57 billion in 2014, announced revenues for 2015 declined 26.4% to NT$60.76 billion (US$1.81 billion). Net profits for 2015 came to NT$18.08 billion, also representing a fall from a record NT$52.91 billion in 2014.

Inotera's earnings per share slid to NT$2.76 in 2015 from NT$8.32 a year earlier. However, the company's net value per share as of December 31, 2015 was NT$20.58, which was above NT$17.79 as of December 31, 2014.

In the fourth quarter of 2015, Inotera saw its revenues decrease 20% sequentially to NT$11.57 billion due mainly to falling DRAM ASPs as well as lower wafer shipments. Bit shipments during the quarter were down 5.1% compared to the third quarter, the company said.

In addition, Inotera disclosed about 80% of its total wafer start capacity were transitioned to 20nm process technology at the end of 2015. The company is on track to complete its full conversion to 20nm by the end of second-quarter 2016. Looking forward, Inotera expects its bit shipments for the first quarter of 2016 to increase by a double-digit percentage sequentially.

Nanya reported revenues for 2015 declined 10.7% to NT$43.87 billion. Bit shipments increased 16.3% on year, but the ASP fell 26.9% resulting in the revenue decrease, according to the DRAM maker.

In 2015, Nanya recognized gains of about NT$4.41 billion from Inotera in which it holds a 24% ownership interest. Nanya generated net profits of NT$17.13 billion in 2015, down 39.3% on year, with EPS reaching NT$7.07.

Nanya posted revenues of NT$10.35 billion in the fourth quarter of 2015, up 0.1% sequentially. During the quarter, bit shipments rose 16% on quarter but the ASP fell 15.5%. Gross margin for the fourth quarter came to 30%, down 7.3pp sequentially, however.

Nanya has converted more than 50% of its total wafer start capacity to a "die-shrink" 30nm node technology, the company said. The proportion will exceed 70% in the second quarter of 2016, it added.

Nanya's bit shipments will stay flat sequentially in the first quarter of 2016, but are forecast to increase about 10% on year in all of 2016, the company indicated. Capex for 2016 is targeted at NT$25.25 billion, and the majority of the capex will be for 20nm conversion, the company said.