Covestro's Shanghai MDI expansion plan brings medium- to long-term supply pressure, while approval uncertainty remains the key variable

Overview

This report is a Morgan Stanley company research brief on Wanhua Chemical, centered on competitor Covestro's announcement of MDI capacity expansion in Shanghai. The report believes that if the plan materializes, it will add about 660kt of MDI capacity around 2030, accounting for about 6% of the global total, creating potential medium- to long-term pressure on the MDI supply-demand landscape in which Wanhua Chemical operates.

Core views

The core view is that the Covestro expansion news is somewhat negative for Wanhua Chemical because the added capacity may weaken supply discipline and price elasticity in the MDI industry; however, the report also emphasizes uncertainty around project approvals, especially as approvals for new projects are tightening under China's anti-involution backdrop, so it cannot simply be assumed that capacity will definitely come onstream as planned.

Analysis framework

The report uses event-driven industry supply analysis combined with the Morgan Stanley ModelWare valuation framework. On the event side, it focuses on assessing the scale of Covestro's added capacity, its global share, the timing of commissioning, and approval risks; on the valuation side, it uses P/E multiples to measure Wanhua Chemical's sustainable earnings and the potential upside under supply-disruption scenarios.

Methodology notes

• Valuation methodP/E multiple valuation

  Sustainable earnings are valued at 15x P/E, and potential upside from supply disruption is valued at 10x P/E.

  The report multiplies Rmb19.0bn of sustainable earnings by 15x P/E and about Rmb5.1bn of potential upside by 10x P/E, reflecting a layered valuation approach for mid-cycle earnings and scenario upside.

• Industry supply analysisIncremental capacity as a share of global supply

  The ratio of added capacity to global capacity is used to judge the intensity of the industry supply-demand shock.

  Covestro plans to add about 660kt of MDI capacity, about 6% of the global total; this is a relatively high ratio, so even if commissioning is around 2030, it may still affect market expectations for the long-term supply landscape.

• Scenario risk analysisUpside/downside risk decomposition

  Global supply disruption, restocking demand, new product rollout, demand destruction, and raw material supply issues are broken down into different scenarios.

  The report separately lists upside risks and downside risks to explain the main paths through which earnings and valuation may deviate from the base case.

Asset mapping & comparison

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

• Wanhua Chemical (600309.SS)

  Company covered by the report; a core name in the MDI industry.

  Strengths

  It has a relatively strong sustainable earnings base; if global petrochemical supply sees severe disruption, restocking demand strengthens, or new products penetrate as planned, earnings and valuation may still have upside.

  Weaknesses

  It is sensitive to MDI supply-demand dynamics and the petrochemical cycle, and added capacity from competitors may weaken the long-term supply landscape and price elasticity.

  Comparison

  It is in direct competition with Covestro, and Covestro's Shanghai expansion plan is the core event variable in this report.

  Risks

  High petrochemical prices may lead to demand destruction; raw material supply issues such as LPG and naphtha may cause deep losses; if competitor expansion is approved and implemented, supply pressure will increase.

• Covestro (1COVG.F)

  A competitor of Wanhua Chemical; the party announcing this Shanghai MDI expansion plan.

  Strengths

  If the project is approved and commissioned, it will expand its capacity footprint in the China and global MDI markets.

  Weaknesses

  Project approvals are uncertain, especially against the backdrop of China's anti-involution campaign and stricter approval of new projects.

  Comparison

  The added capacity of about 660kt accounts for about 6% of the global total, large enough to affect expectations for Wanhua Chemical and global MDI supply and demand.

  Risks

  Approvals, construction progress, the industry cycle, and supply-demand changes may affect the actual implementation pace of the project.

Key data

• Report date2026-06-30The report cover page shows the publication date as June 30, 2026.
• Research institutionMorgan StanleyThe report was published by analysts affiliated with Morgan Stanley Asia Limited.
• Covered companyWanhua Chemical (600309.SS)Both the report title and entity information point to Wanhua Chemical.
• Competitor expansion scaleabout 660kt of MDI capacityCovestro announced plans to increase MDI capacity in Shanghai.
• Global share of added capacityabout 6%The report states that the added capacity accounts for about 6% of the global total.
• Planned commissioning timeby 2030The expansion project is planned to form capacity around 2030.
• Sustainable earnings valuation assumptionRmb19.0bn; 15x P/EThe report values Wanhua Chemical's sustainable earnings at 15x P/E.
• Potential upside valuation assumptionabout Rmb5.1bn; 10x P/EThe report values the potential upside from longer-term global supply disruption at 10x P/E.
• Latest visible historical price target entry2026-04-10: 101From the historical price target chart; the text does not explicitly state whether this is the current formal target price.

Impact & implications

If Covestro's Shanghai MDI expansion is approved and brought online as planned, global MDI supply may increase, putting medium- to long-term pressure on industry prices and Wanhua Chemical's earnings elasticity; however, approval uncertainty is high, so the short-term investment implication is more about monitoring changes in policy approvals, supply discipline, and industry price expectations rather than immediately confirming a capacity shock.

Risks

• If Covestro's Shanghai MDI expansion is approved and commissioned on schedule, it may increase pressure on global MDI supply.
• High petrochemical product prices may cause demand destruction, thereby pressuring sales volume and prices.
• If supply issues for raw materials such as LPG and naphtha persist, profits may be significantly damaged.
• If global petrochemical supply disruptions ease, the potential upside scenario in the report related to tight supply may weaken.
• Opaque project approval information may cause repeated swings in the market's judgment of the supply shock.

What to watch

• Whether Covestro's Shanghai MDI expansion project receives approval from Chinese regulators.
• Whether approvals for new chemical projects continue to tighten under China's anti-involution policy backdrop.
• Changes in global MDI supply-demand balance, operating rates, prices, and inventories.
• Whether global petrochemical supply disruptions persist and whether they bring earnings upside for Wanhua Chemical.
• Whether restocking demand can further boost sales volume.
• Whether Wanhua Chemical's new product penetration progresses as planned.
• Supply and price trends for key raw materials such as LPG and naphtha.
• Whether Morgan Stanley subsequently updates its rating, target price, or earnings forecasts.