Mercer International Inc.NASDAQ: MERC

Mercer International: Rosenthal Provides an Update on the Current Situation...

· Issued by Mercer International Inc.

Summary by 6ix AI

Mercer Rosenthal, a German kraft pulp mill that is part of Mercer International Inc., temporarily suspended its mill restart and its wastewater discharge into the Saale River after being told of discoloration near the discharge point, it said on October 2, 2026. The restart followed a scheduled maintenance shutdown of approximately four weeks.

Key details

  • The company said it suspended the startup and the discharge as a precautionary measure, and is holding the wastewater in the plant's buffer tanks until the investigation is complete.
  • The Saale-Orla District Office says it has imposed a temporary precautionary ban on swimming in the southern section of the Bleiloch Reservoir between Harra and the Saale Bridge near Saaldorf.
  • The relevant environmental authorities have been notified and have visited the site, and Mercer Rosenthal says it is in close and continuous contact with them.
  • Mercer Rosenthal makes kraft pulp, a raw material for paper and tissue, and says it has an annual production capacity of 360,000 metric tons.

What’s still pending

  • The investigation into the discoloration is ongoing; wastewater will be held in buffer tanks until it is complete.
  • The suspension of the startup and wastewater discharge is described as temporary.
  • The swimming ban in part of the Bleiloch Reservoir is described as temporary.

6ix AI wrote this summary from the release below and checked it against the release.

October 2, 2026 / All Stories

Mercer Rosenthal Provides an Update on the Current Situation on the Saale River

Rosenthal am Rennsteig, October 2, 2026 - During the restart of the Mercer Rosenthal pulp mill following a scheduled maintenance shutdown of approximately four weeks, the company was informed of discoloration near the wastewater discharge point into the Saale River.

As a precautionary measure, the plant has temporarily suspended the startup process and the discharge of wastewater into the Saale River. The wastewater is currently being held in the plant's buffer tanks until the investigation is complete.

According to its own statement, the Saale-Orla District Office has imposed a temporary precautionary ban on swimming in the southern section of the Bleiloch Reservoir between Harra and the Saale Bridge near Saaldorf. Further information is available from the Saale-Orla District Office.

The relevant environmental authorities have been notified and have visited the site. Mercer Rosenthal is in close and continuous contact with the authorities.

Environmental protection is of great importance to Mercer Rosenthal, and we are taking appropriate measures to fully clarify the facts of the matter.

About Us

Mercer Rosenthal produces kraft pulp, a raw material for paper and tissue manufacturing. With an annual production capacity of 360,000 metric tons, the company primarily supplies customers in Germany and Italy. The majority of the pulp is transported by rail.

In addition to high-quality pulp, Mercer Rosenthal manufactures other wood-based products such as tall oil and lignin. The company also operates a large biomass power plant with a thermal capacity of 413 megawatts and an electrical capacity of 57 megawatts.

Mercer Rosenthal is part of Mercer International Inc., an internationally active manufacturer of wood products with locations in Germany, Canada, and the United States. For more information about the company, visit www.mercerint.com.

Press Contact

Mandy Schwanitz, Public Relations
Email: mandy.schwanitz@mercerint.com
Phone: +49 36642 8-2153
Mercer Rosenthal GmbH
Hauptstraße 16
07366 Rosenthal am Rennsteig

Mercer International Inc. on 6ix

Earlier from Mercer International

Later from Mercer International

All Mercer International news releases