Sumitomo Rubber Launches Project ARK to Cut ¥30bn Costs

Sumitomo Rubber Industries (SRI) has launched “Project ARK,” a company-wide cost-reduction programme designed to counter raw-material inflation, shifting consumer demand, new tariffs and geopolitical risk. The initiative aims to lower SRI’s total cost base by ¥30 billion (about £151m / US$203m) by the end of 2027, strengthening margins through operational efficiency across tyre and non-tyre businesses. The plan was outlined with SRI’s H1 2025 financial results this month. ‍

What Is Project ARK?

Project ARK is SRI’s new framework for “total cost reduction,” evolving the company’s earlier Be The Change programme. It is led at executive level and organised into workstreams spanning tyre production costs, shared administrative and R&D expenses, and non-tyre segments. The target is set against an annual group cost base of roughly ¥1.1 trillion.

“We aim to achieve a total cost reduction of JPY30 billion by the end of 2027,” said Shinji Araki, General Manager, Accounting & Finance HQ, during SRI’s Q2 briefing.

Why Now? Market Pressures Intensify

SRI cites a tougher demand mix and external shocks that are squeezing margins:

• Higher natural rubber and petrochemical inputs
• New and rising US import duties on tyres and components
• Trade and geopolitical uncertainties affecting logistics and pricing
  These factors have sharpened SRI’s focus on cost and mix. For broader background on tariff impacts, see our explainer “US tyre tariffs return: what a 25% duty means” and our follow-up on escalating tariff layers.

Where the Savings Come From

Tyre manufacturing efficiency

• Shorter development lead times using virtual prototyping and integrated data
• Fewer physical prototypes; mould ordering more disciplined
• Factory and logistics optimisation across sales offices, warehouses and networks

Corporate and group functions

• Shared services and head-office efficiencies (admin and R&D)
• Selective investment in DX/AI where payback supports reductions

Non-tyre segments

• Cost targets allocated in proportion to segment cost bases, with tyres the main focus.

Timeline and Interim Targets

SRI describes the ¥30bn figure as cumulative through end-2027, with modest gains in 2025 building to larger impacts in 2026–27. Management says several billion yen of benefits are achievable this year, ramping toward double-digit billions next year. President Iwao Yamamoto added the company is “fully mobilized” behind the plan to reach a 10% business-profit margin in 2027.

Strategic Context: Dunlop Integration and Mix

Project ARK runs alongside SRI’s portfolio moves to premiumise the Dunlop brand following the acquisition of regional trademarks from Goodyear.

For detail on that brand strategy and regulatory milestones, see our coverage of EU approval for the Dunlop deal and the transaction close.

These actions should support ARK’s profit-mix ambitions in Europe and North America.

‍

‍

‍