Hoku Scientific

Hoku Scientific, Inc. (NASDAQ: HOKU), a designer, developer and manufacturer of membrane electrode assemblies (MEAs) and non-fluorinated membranes for proton exchange membrane (PEM) fuel cells, announced today that its executive management team will preside over the opening of the NASDAQ stock market on Monday, October 24, 2005.

Highlights:

• Revenue Increases to $1.3 million from Nil a year ago
• Net Income Increases to $0.02 per Diluted Share From a Loss of $0.15 per Diluted Share in the prior year
• Third Consecutive Profitable Quarter

Hoku Scientific, Inc. (NASDAQ: HOKU), a designer, developer and manufacturer of membrane electrode assemblies (MEAs) and non-fluorinated membranes for proton exchange membrane (PEM) fuel cells, today announced its financial results for its second quarter ended September 30, 2005 and provided a general update on its business.

Hoku Scientific, Inc. (NASDAQ: HOKU), a designer, developer and manufacturer of membrane electrode assemblies (MEAs) and non-fluorinated membranes for proton exchange membrane (PEM) fuel cells, announced today that it will hold a conference call with investors and analysts on Wednesday, October 19, 2005 at 5:00 p.m. EDT to discuss results for the Company’s second quarter fiscal year 2006 ended September 30, 2005 and the company’s business outlook.

The news release announcing the second quarter fiscal year 2006 results will be disseminated on October 19, 2005 after the market close.

Hoku Scientific, Inc. (NASDAQ: HOKU), a provider of membrane electrode assemblies and non-fluorinated membranes for proton exchange membrane (PEM) fuel cells today announced its financial results for its first quarter ended June 30, 2005 and provided a general update on its business.

Hoku Scientific, Inc. (Nasdaq: HOKU) announced today that the underwriters of the company’s recent initial public offering of its common stock have exercised in part their over-allotment option to purchase an additional 183,200 shares of the company’s common stock at the initial public offering price of $6.00 per share, before deducting underwriting discounts. Piper Jaffray & Co. is acting as book-running manager for the offering, and together with SG Cowen & Co., LLC and Thomas Weisel Partners LLC, are acting as representatives of the underwriters.

Hoku Scientific, Inc. today announced the initial public offering of 3,500,000 shares of its common stock at an initial public offering price of $6.00 per share. All the shares will be sold by Hoku Scientific. Shares of Hoku Scientific common stock will be traded on the Nasdaq National Market under the trading symbol “HOKU.” Hoku Scientific has granted the underwriters a 30-day option to purchase up to 525,000 additional shares of common stock at the initial public offering price, less the underwriting discount, to cover over-allotments, if any. Piper Jaffray & Co.

Hoku Scientific, Inc. (NASDAQ: HOKU), announced today that it will release financial results for the first quarter ended June 30, 2005, on Wednesday, September 7, 2005 after market close. In conjunction with the release, the company will host a live conference call and webcast at 4:30 p.m. (EDT) the day of the release. The dial-in phone number for the conference call is (913) 981-4911; pass code 6684270. The webcast can be accessed by going directly to the company’s Web site at www.hokuscientific.com and electing the conference call link on the home page.

Hoku Scientific, Inc. announced today that it has filed a registration statement on Form S-1 with the Securities and Exchange Commission for an initial public offering of shares of its common stock.

The underwriters of the offering will be Piper Jaffray & Co., acting as book-running manager, and SG Cowen & Co., LLC and Thomas Weisel Partners LLC, acting as co-managers. The number of shares to be offered and the price range for the offering have not yet been determined.