Sumitomo Bakelite H1 profit jumps 47% as AI demand lifts guidance

By Nathan Brooks

Sumitomo Bakelite (4203.T) reported first-half net profit attributable to owners of the parent of ¥19.561 billion, about $123.5 million, up 47.2% year on year, as semiconductor materials lifted revenue 22.7% to ¥192.041 billion, about $1.2 billion.

Operating profit increased 57.9% to ¥25.985 billion ($164.0 million), while company-defined business profit rose 64.1% to ¥28.084 billion ($177.3 million). The operating margin improved three percentage points to 13.5%.

The April–September 2026 results, released on November 4 for the fiscal year ending March 2027 under IFRS, benefited from higher semiconductor shipment volumes, pricing adjustments and yen depreciation. Sumitomo defines business profit by subtracting cost of sales and selling, general and administrative expenses from revenue.

What powered the profit jump?

Semiconductor-related materials revenue rose 37.7% to ¥70.592 billion ($445.7 million), representing 36.8% of company revenue, roughly one in every three sales. Segment business profit climbed 64.1% to ¥16.732 billion ($105.6 million), lifting its margin to about 23.7%. Shipments for power devices and memory grew on AI data-center demand.

• Epoxy resin molding compounds performed well in power devices, automotive applications, high-end smartphones and communications equipment.
• Photosensitive materials advanced with memory demand.
• Bonding pastes for power semiconductors expanded.
• The “LαZ” series of component-embedded substrate materials also posted stronger sales.

Not all semiconductor-materials sales serve AI applications, a distinction the company does not leave entirely to investors. Sumitomo Bakelite describes itself as the largest supplier of resin-based chip encapsulants, with a 40% global share. As generative AI raises data-center power requirements, worldwide demand has increased for package materials that improve heat resistance and strength.

What carried the non-semiconductor businesses?

High-performance plastics revenue rose 23.8% to ¥63.327 billion ($399.8 million), and business profit jumped 127.7% to ¥5.863 billion ($37.0 million). Pricing responses to higher raw-material costs, the weak yen and stronger Asian and Chinese sales of electrical-component and aircraft-part molding compounds drove the gain.

Quality-of-life-related products generated revenue of ¥57.751 billion ($364.6 million), up 7.4%, and business profit of ¥8.283 billion ($52.3 million), up 23.4%. Medical-equipment revenue fell after Sumitomo ended its domestic hemodialysis blood-circuit business, while pharmaceutical packaging, food packaging and industrial films lifted profit.

What does the Kyocera transaction add?

Sumitomo completed procedures on October 30 to acquire part of Kyocera’s (6971.T) chemical business through all shares in newly established Sumitomo Bakelite Chemical Solutions. SBCS will consolidate from November. Fiscal 2027 guidance includes ¥12 billion ($75.8 million) of SBCS revenue and ¥1 billion ($6.3 million) of business profit.

System changes and other items will create nearly ¥1 billion ($6.3 million) of initial costs, causing a temporary profit dip. The combination pairs Kyocera’s high-thermal-conductivity technology with Sumitomo’s encapsulants for next-generation AI servers, cutting-edge packages where heat dissipation is critical, GPUs, power devices and memory.

Where does demand come from beyond data centers?

For the second half, Senior Managing Executive Officer Keisuke Kurachi said: “demand for encapsulants for advanced semiconductors mounted on low-Earth-orbit communications satellites will begin to grow in earnest.” Orders from semiconductor makers with long-term contracts with major American space companies should support results.

How quickly can capacity respond?

At its Suzhou, China, plant, Sumitomo plans to expand facilities around the end of 2028, increasing encapsulant capacity for GPUs and memory semiconductors by 30%. In October, it announced plans to raise advanced-semiconductor encapsulant output in Suzhou in fiscal 2030 and Singapore in fiscal 2028. It has also outlined bases in Singapore and Taiwan.

What changed in the full-year outlook?

Full-year guidance, raised on October 30 before the first-half results, now calls for revenue of ¥400 billion ($2.5 billion), up 25.1%; business profit of ¥55 billion ($347.2 million), up 59.5%; operating profit of ¥50 billion ($315.7 million), up 40.9%; and net profit of ¥35 billion ($221.0 million), up 24.9%. The revisions added ¥63 billion ($397.7 million) to revenue and ¥6.5 billion ($41.0 million) to net profit versus previous projections; November 4 brought no further revision.

Sumitomo also raised its annual dividend forecast by ¥30 from the prior year to ¥140 per share ($0.88) and set an interim dividend of ¥70 ($0.44). Management said the ¥55 billion business-profit target would meet the quantitative goal in its long-term “desired state for 2030” four years early. The sequence was unusually tidy.

How did investors and policy risks react?

The stock had been falling before the earnings release and at one point dropped 14% from the previous close. The decline accompanied a broad semiconductor selloff after it became certain that the Democratic Party, viewed as favorable toward AI regulation, would win a U.S. House majority in the midterms. The stock recovered to close down 8% at ¥7,307.

The next checkpoints are SBCS integration and low-Earth-orbit demand. Capacity, pricing, currency moves, raw-material costs and semiconductor policy will determine whether the current margin gains survive the expansion.