The Tokuyama-backed series C round will be used by 1366 Technologies to support construction of a 250 MW production facility.

US-based silicon wafer manufacturer 1366 Technologies secured an additional $5m yesterday, enabling it to close a series C round also featuring chemicals producer Tokuyama at $22.5m.

1366 produces silicon wafers to be used in solar cells for power generation. The series C funding, led by venture capital firm Haiyin Capital, will support the company’s construction of a 250 MW manufacturing plant.

Tokuyama led the initial $15m tranche of the round in October 2013, with Energy Technology Ventures, the joint venture…