# Sumitomo Metal Mining buys back ¥30B, absorbs ¥42.6B nickel charge *The Japanese refiner will repurchase up to 2.79% of issued shares through Jan. 29 while booking an impairment on its Philippine Coral Bay unit.* **Published:** November 10, 2026 **By:** Kenji Sato **Section:** Semiconductors & AI Hardware — Japan **Format:** Company Watch **Confidence:** medium **Source:** https://eastasiabrief.com/semiconductors/sumitomo-metal-mining-buys-back-30b-absorbs-42-6b-1308 **Publisher:** East Asia Brief (https://eastasiabrief.com/) --- ## What to know - SMM authorizes a ¥30 billion buyback of up to 2.79% of shares - Philippine unit Coral Bay incurs a ¥42.6 billion impairment on mine wind-down costs - Repurchases run Nov. 11, 2026 to Jan. 29, 2027 with excess treasury stock canceled ![A worker in a hard hat stands near glowing molten metal at an industrial nickel smelting facility. (AI-generated image)](https://eastasiabrief.com/media/2026-11-10-a8b8c5e64d27.webp) *A worker in a hard hat stands near glowing molten metal at an industrial nickel smelting facility. (AI-generated image)* Sumitomo Metal Mining authorized a ¥30 billion ($196 million) share repurchase on Nov. 10, 2026, while absorbing a ¥42.6 billion impairment on its Philippine nickel smelting subsidiary. The buyback authorization covers up to 7,500,000 common shares, representing 2.79% of issued stock excluding treasury holdings. The company said it will execute the market transactions between Nov. 11, 2026 and Jan. 29, 2027. The board also established a formal retention benchmark of roughly 5% of issued stock for treasury shares. Sumitomo Metal Mining said it will cancel any treasury holdings that exceed that 5% threshold in principle. The capital return arrived alongside robust earnings for the fiscal first half ended Sept. 30, 2026. Consolidated net sales rose 34.8% year over year to ¥1,056.0 billion ($6.9 billion). First-half net profit attributable to owners of the parent climbed 67.2% to ¥90.1 billion ($589 million). Higher copper and gold prices, a depreciated yen and firm sales of advanced electronic materials cushioned the group against smelting headwinds. The smelting and refining division took a heavy financial hit from its overseas operations. Sumitomo Metal Mining booked a ¥42.55 billion ($278 million) impairment loss within cost of sales for Coral Bay Nickel Corporation. The Palawan-based processing plant in the Philippines is approaching the conclusion of its commercial operational lifespan. The charge reflected revised asset retirement obligations and lower economic returns from declining laterite ore grades. Coral Bay uses high-pressure acid leach technology to turn low-grade nickel ore into intermediate mixed nickel-cobalt sulfides. The plant ships those sulfides to the Niihama Nickel Refinery in Ehime Prefecture, Japan, for refining into battery-grade metal. Surging supply from Indonesia has weighed on global nickel markets throughout 2026. Chinese-backed processing facilities in Indonesia added immense rotary kiln electric furnace and acid leach capacity, depressing Class 1 nickel premiums worldwide. Depressed global nickel prices squeezed operating margins across traditional merchant refiners in Asia. Operating costs escalated at peripheral processing sites as older surface deposits yielded thinner nickel concentrations and required larger environmental restoration outlays. Sumitomo Metal Mining remains Japan's dominant domestic refiner of high-purity electrolytic nickel. The company produces precursor cathode active materials for lithium-ion battery cells used in electrified vehicles and industrial power systems. Downstream exposure runs directly to Japanese battery manufacturing lines. Sumitomo Metal Mining supplies cathode materials to Panasonic Holdings, which builds cylindrical battery cells for electric vehicle makers including Tesla. The Philippine facilities provide critical feedstocks that satisfy non-Chinese mineral sourcing standards. Sumitomo Metal Mining sources its intermediate sulfides from Coral Bay and its secondary Philippine refinery, Taganito HPAL Nickel Corporation. The Coral Bay writedown forced Sumitomo Metal Mining to lower its full-year earnings guidance. The group reduced its projected annual net profit by 25.5% to ¥161.0 billion ($1.05 billion), down from the ¥216.0 billion expected in August. Full-year pre-tax profit guidance fell 19.8% to ¥260.0 billion, the company said in a financial filing. Management noted that higher energy logistics costs and potential yen appreciation would constrain operating results across the second fiscal half. The smelter preserved its projected annual dividend payout of ¥207 per share. Management reaffirmed an interim distribution of ¥103 per share, keeping its dividend on equity ratio above its 3.5% minimum threshold. Sumitomo Metal Mining targets an optimal equity ratio of 55% to balance balance-sheet durability against shareholder returns. Management stated that ongoing capital distribution should bring the equity ratio to roughly 58% by March 2028. The filing does not state the standalone profit impact on Taganito HPAL Nickel Corporation, and the company has not published revised mine life estimates for its Surigao deposit. Coral Bay will continue commercial recovery runs while site teams calibrate site remediation timelines. Share repurchases on the Tokyo exchange open Nov. 11, 2026, and run through Jan. 29, 2027. ## Impact map | Event | Korea | China | Japan | Global impact | | --- | --- | --- | --- | --- | | Philippine HPAL impairment and share buyback | Korean cathode producers face persistent low-cost competition from Indonesian HPAL intermediate output | Indonesian MHP supply glut solidifies Chinese pricing leverage over Southeast Asian nickel feedstocks | Sumitomo Metal Mining absorbs ¥42.6b asset charge but defends cash returns through a ¥30b buyback | Battery-grade nickel pricing remains under pressure as legacy HPAL sites approach retirement | ## In this story - **Companies:** Sumitomo Metal Mining - **Tickers:** 5713.T - **Exposed:** Panasonic Holdings - **Impact:** Capex, Cost Structure, Pricing ## Primary sources 1. biggo.jp 2. smm.co.jp 3. minkabu.jp 4. economic.jp --- Cite as: East Asia Brief, "Sumitomo Metal Mining buys back ¥30B, absorbs ¥42.6B nickel charge," November 10, 2026. https://eastasiabrief.com/semiconductors/sumitomo-metal-mining-buys-back-30b-absorbs-42-6b-1308