Asahi Kasei to Discontinue Key Petrochemical Lines by 2030 in Portfolio Overhaul

Event summary

  • Asahi Kasei will discontinue styrene monomer and acrylonitrile production at Mizushima Works by FY2030.
  • The affected businesses generated ¥116.2 billion in FY2025 revenue, part of the ¥1,306.2 billion Material segment.
  • The company will maintain supply through partners like Tongsuh Petrochemical (South Korea) and Asahi Kasei Performance Chemicals (China).
  • This realignment supports Asahi Kasei's focus on pharmaceuticals, critical care, overseas homes, and electronics.
  • Recent strategic moves include a decarbonization agreement with Mitsui Chemicals and Mitsubishi Chemical, and the acquisition of Aicuris.

The big picture

Asahi Kasei's decision to exit inherently challenging petrochemical businesses reflects broader industry consolidation trends. The move aligns with its 'Trailblaze Together' plan to convert past growth investments into tangible returns. By FY2030, the company aims to strengthen long-term profitability through disciplined portfolio management and strategic capital reallocation.

What we're watching

Capital Reallocation
How Asahi Kasei will deploy freed-up capital toward higher-value opportunities in its growth pillars.
Supply Chain Resilience
Whether the shift to external suppliers will introduce new operational risks or inefficiencies.
Profitability Impact
The pace at which margin improvements materialize as lower-cost supply chains take effect.