UBS believes supply chain risk in Japan's chemical industry remains high, and portfolio positioning should favor names with lower oil exposure, fewer bulky products, and longer supply chains.

Overview

In its Japan chemicals industry research published on May 25, 2026, UBS concludes that supply chain risks in the sector are elevated. The report's core preference is to reduce exposure to oil-related businesses, lessen reliance on bulky products, and favor businesses with longer supply chains, higher added value, or greater differentiation. It covers the Japan chemicals sector and also discusses the petrochemical market, the benzene market, natural gas chemicals and aromatic chemicals, electronics materials, the DRAM cycle, 300mm wafer trends, and related companies or supply-chain nodes such as SUMCO and GlobalWafers.

Core views

The report's main theme is supply chain risk and business exposure screening. Petrochemicals and basic chemicals continue to be affected by oil prices, demand conditions, and capital cost volatility, while the electronics materials and wafer-related sections are more tied to the DRAM cycle, HBM, 300mm wafer demand, and monthly trends at Taiwanese wafer companies. UBS discloses that chemical sector valuations are mainly based on PER and PBR relative to the TOPIX-33 chemicals sector, and identifies stronger-than-expected demand and lower inflation expectations as upside risks, while higher inflation expectations, rising capital costs, weaker capex demand, and declining auto demand are downside risks.

Analysis framework

The report combines horizontal industry comparison with cycle tracking: on one hand, it screens chemical companies by supply chain risk, oil/petrochemical exposure, product bulk characteristics, and supply chain length; on the other hand, it tracks the petrochemical market, weekly benzene trends, DRAM contract prices, quarterly 300mm wafer trends, changes in operating profit drivers, and relative valuation indicators.

Methodology notes

• Valuation frameworkTOPIX-33 chemicals sector relative PER and PBR

  Relative valuation

  The report states that chemical sector valuation is based on PER and PBR relative to the TOPIX-33 chemicals sector, which is used to assess the valuation position of Japanese chemical companies.

• Industry screening frameworkSupply chain risk and oil exposure screening

  Preference for lower oil exposure, fewer bulky products, and longer supply chains

  The report title directly sets out the allocation preference: in an environment of elevated supply chain risk, it favors businesses with less oil exposure, products that are not mainly bulky goods, and longer supply chains.

• Cycle trackingDRAM cycle and 300mm wafer trends

  Semiconductor materials demand cycle

  The report includes DRAM contract prices, HBM-related pricing references, quarterly 300mm wafer trends, and monthly trends at Taiwanese wafer companies to judge demand for electronics materials and wafers.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• Japan chemicals sector

  Primary research focus

  Strengths

  Structural opportunities may be found through supply chain length, product differentiation, and relative valuation.

  Weaknesses

  The industry faces elevated supply chain risk, and some businesses are heavily exposed to oil and the petrochemical cycle.

  Comparison

  Valuation is referenced against the TOPIX-33 chemicals sector relative PER and PBR.

  Risks

  Rising inflation expectations, higher capital costs, weaker capex demand, and lower auto demand.

• Petrochemicals/Fine chemicals

  One of the core subsectors

  Strengths

  Fine chemicals may offer stronger differentiation and a longer supply chain profile.

  Weaknesses

  Petrochemical businesses are more sensitive to oil prices, basic chemical spreads, and cyclical swings.

  Comparison

  Compared with lower-oil-exposure businesses, petrochemical-related businesses carry higher risk exposure.

  Risks

  Volatility in oil prices and petrochemical markets, weaker demand, and higher capital costs.

• Electronics materials and wafer supply chain

  Downstream cycle monitoring area

  Strengths

  Linked to DRAM, HBM, and 300mm wafer demand, and could be supported by an improvement in the semiconductor cycle.

  Weaknesses

  Demand depends on memory and wafer cycles, and near-term prices and shipments may be volatile.

  Comparison

  Compared with traditional petrochemicals, electronics materials are more driven by semiconductor demand and technology cycles.

  Risks

  DRAM price declines, wafer demand coming in below expectations, and customer inventory adjustments.

Key data

• Report Date2026-05-25The front page shows Global Research 25May2026, and the disclosure page shows the recommendation completion time as 25May 2026 06:42AM GMT.
• Covered sectorJapan ChemicalsThe front page is labeled Japan Chemicals Sector, and the asset class is Equities.
• Core preferencelower oil exposure, fewer bulky products, longer supply chainsTaken from the investment theme in the report title.
• Valuation basisTOPIX-33(chemicals)-relative PER and PBRThe valuation and risk disclosure page states that the chemical sector is valued under this relative valuation framework.
• Share price date2026-05-21Chart notes show the share price date as of 21 May 2026.
• Low valuation/low return marker thresholdsROE below 7%, PE below 10x, PBR below 0.6xChart notes state that figures below these thresholds are marked in red.
• AnalystShunta OmuraUBS Securities Japan Co., Ltd.; contact details are listed on the front page.

Impact & implications

For investors, the report suggests that the Japan chemicals sector should not be positioned solely on traditional low-valuation or cyclical recovery logic; instead, greater weight should be placed on supply chain risk, exposure to energy and petrochemical feedstocks, product logistics characteristics, and downstream demand cycles. If demand for consumer goods, durables, autos, or capital expenditure improves, the sector may benefit; but if inflation expectations rise and push up capital costs, or if auto and capex demand weaken, valuations and earnings expectations could come under pressure.

Risks

• Rising inflation expectations leading to higher capital costs.
• Declining capital investment demand.
• Declining auto demand.
• Volatility in oil and petrochemical markets affecting profits in related businesses.
• Persistently elevated supply chain risk may weigh on operational stability and valuations across the industry.
• The report notes that past performance does not guarantee future results and that investment value may fluctuate up or down.

What to watch

• Changes in oil and petrochemical exposure among Japanese chemical companies.
• Weekly market trends in petrochemical products such as benzene.
• DRAM contract prices and changes in HBM-related demand.
• Quarterly trends in 300mm wafers and monthly trends at Taiwanese wafer companies.
• Whether demand for consumer goods and durables in North America, China, Japan, and Europe comes in above expectations.
• Changes in inflation expectations, capital costs, and auto demand.