Cosmo Specialty Fibers

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

Air quality

The comment period on the draft Air Operating Permit for the Cosmo Specialty Fibers paper mill ended Feb. 14, 2020. 

Read the public comment notice for more information. Application materials are available:

  • At the Aberdeen Timberland Library, 121 E Market Street, Aberdeen, Wash. 
  • By request from the Department of Ecology. If you'd like to make a request, contact Angelina Ward at or 360-407-6916.

Public event

A public meeting, followed by a hearing to accept oral comments, took place:

  • Jan. 29, 2020
  • Starting at 6:30 p.m.
  • At Grays Harbor College Rooms 4134 A/B, 1620 Edward P. Smith Dr., Cosmopolis, Wash.

Updated online March 6, 2020.

Facility information

This is a kraft pulp and paper mill.

  • With around 200 employees, the mill uses virgin hemlock to make 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.

Permit information

Cosmo Specialty Fibers contacts

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