Contact ChemSW ChemSW is headquartered in Fairfield, California which is about equidistant from San Francisco and Sacramento and about 65 miles from Silicon Valley. We just moved to a new, bigger location! Please update your contact information with our new address below E-Mail:  info@chemsw.com Phone:  707-864-0845 Fax:  707-864-2815 US Mail:  ChemSW    4771 Mangels Blvd    Fairfield, CA 94534
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