Photovoltaic power systems installer Hoku Solar, Inc., a subsidiary of Hoku Scientific, Inc. (Nasdaq:HOKU) said this morning that Young Brothers, a provider of inter-island ocean cargo service in Hawaii, has purchased a solar electricity system from Hoku Solar.

Shares gained 6.6%, or $0.48, to $7.70 in pre-market trading. For detailed price information and recent news stories about Hoku Scientific, click HOKU.  

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