Mercer International has given investors two distinct storylines to track this month, and they pull in opposite directions. On the ground in Germany, the company’s Rosenthal mill is edging back toward normal operations. On the balance sheet, a deliberately unpaid interest instalment has thrust the pulp producer’s capital structure back to center stage.
The next hard checkpoint arrives on October 29, when Mercer is scheduled to publish third-quarter 2026 results, followed by a conference call on October 30. Until then, the market has little to work with beyond the two disclosures already on the table.
Rosenthal: wastewater flows again, but production is still pending
Mercer Rosenthal said on October 6 that it had been gradually resuming wastewater discharge into the Saale river since October 3. The mill had halted both the discharge and its restart efforts as a precaution after reports of discoloration in the waterway. The resumption was carried out in coordination with environmental authorities.
What the notice does not say is equally important. According to the company, preparations are underway to restart pulp production — a step that has not yet been completed. Resuming discharge and preparing to restart output are separate milestones, and the distinction matters for anyone reading the update as a sign of full operational recovery. No concrete earnings impact can be inferred from the Rosenthal statement alone.
A coupon left unpaid, within the rules
Roughly two weeks ago, Mercer disclosed advanced talks over a comprehensive recapitalization involving a substantial capital injection. The company said at the time that business continued as usual. Holders of more than 75% of the relevant notes are participating in the discussions.
Separately, Mercer opted to skip an interest payment of approximately US$25.8 million that fell due on October 1. The obligation relates to its 12.875% senior notes maturing in 2028. According to the mandatory disclosure, drawing on the contractual 30-day grace period does not constitute an event of default.
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That nuance separates a deferral from a default. Mercer has not paid the interest it owes, but it remains within the terms of the bond indenture while it does so. The recapitalization talks target a significant capital infusion, and the creditors at the table hold more than 75% of the outstanding principal of the 2028 and 2029 notes — a level of participation that gives the negotiations real weight. Media reports indicate the discussions also cover an agreement on debt reduction.
Two questions, two answers
For shareholders, the deferred coupon is not the whole picture. The negotiations address the company’s capital base and go well beyond how to handle a single interest instalment. Mercer has said its pulp, lumber and solid wood operations are running in the ordinary course — a statement about operations, not about how the company will meet its interest obligations or complete the recapitalization it is pursuing.
The same separation applies in Rosenthal. After reported discoloration near the discharge point, the mill stopped its restart and the wastewater release. Discharge into the Saale resumed gradually on October 3, and preparations for restarting pulp production are running in parallel. A flowing outfall is not the same as a running mill.
Yesterday’s 16% share price decline sits mainly on the financing side of that ledger, while today’s 2.5% rebound does nothing to change the underlying setup. The contractual grace period buys Mercer time to negotiate, but it substitutes for neither the interest payment nor the capital injection the company is seeking. Operational progress speaks to the plants; the skipped coupon speaks to the balance sheet — and it is the second question that is currently driving the stock.
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