Cosmo Specialty Fibers

We regulate the air, water, and hazardous waste activities at the Cosmo Specialty Fibers pulp mill in Cosmopolis.

Facility information

This is a sulfite pulp mill.

With around 200 employees, the mill makes about 550 tons of dissolving pulp (acetate, viscose, and ether grades) each day.
It treats its wastewater and sends it to Grays Harbor and the Chehalis River.

Company website
Facility phone: 360-500-4600
Location: 1701 1st St., Cosmopolis, Wash.

Ha Tran
Environmental Engineer
ha.tran@ecy.wa.gov
360-407-6064

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