Tosoh Announces 1Q Consolidated Results FY2005
(April 1, 2005 – June 30, 2005)

Tokyo, Japan – Tosoh Corporation announced consolidated results for the first quarter of the fiscal year, ending March 31, 2006.  Growing consumer demand and an improving domestic economy combined with increasing capital investment to support corporate profits.  In the chemical industry, although petrochemical shipments were brisk, vinyl chloride monomer (VCM) and polyvinyl chloride (PVC) resin markets softened due to a temporary decrease in orders from China.  The rapid increase in the price of Naphtha has left the cost of raw materials high.  Under these conditions, Tosoh strove to increase volumes, maintain and adjust pricing structures to reflect rising costs, and improve efficiency.

The Company reported net sales growth of 17.1% over the first quarter of the previous fiscal year to JPY 140.5 billion (USD 1.3 billion).*  Operating Income grew 42.8% to JPY 8.7 billion (USD 78.9 million), while Ordinary Income increased 48% to JPY 9.7 billion (USD 87.4 million).  Net Income grew 27.9% to JPY 5.8 billion (USD 52.3 million).  The outlook for the fiscal year ending March 31, 2006 projects net sales of JPY 625 billion (USD 5.6 billion), and Net Income at JPY 23 billion (USD 208 million). 

Through innovations in technology and business, the Tosoh Group continues to strengthen core operations to improve competitiveness and focus on developing product lines that are leaders in global or Asian markets.

Summary of 1Q results and comparison with previous fiscal year

* For reference purposes, U.S. dollar amounts are translated from yen at the rate of ¥110.62 = US$1, the exchange rate in effect on June 30, 2005.

Tosoh Corporation

Headquartered in Tokyo, Japan, Tosoh Corporation is a diversified global chemical and specialty materials company. Founded in 1935, the Company has expanded its reach into high value-added businesses such as fine chemicals, scientific instrumentation, thin film materials, and quartzware. Tosoh is a multi-billion dollar corporation that employs more than 9,000 people worldwide. The Company is listed on the Tokyo Stock Exchange.

Stock Exchange Ticker Symbol: 4042

For more information, please contact:

Michael Hoover

International Public Relations

Tosoh Corporation

m_hoover@tosoh.co.jp

Tel: +81-3-5427-5118

Fax: +81-3-5427-5198

www.tosoh.com

Disclaimer

This document contains forward-looking statements, including without limitation, statements concerning product development, objectives, goals, and commercial introduction, which involve certain risks and uncertainties. The forward-looking statements are also identified through use of the word "anticipates," and other words of similar meaning. Actual results may differ significantly from the expectations contained in the forward-looking statements.