ASEAN is entering a pivotal diplomatic phase in 2026, launching five-year review stocktaking exercises for its Comprehensive Strategic Partnerships (CSPs) with both China and Australia — the first two dialogue partners to establish such partnerships with the bloc.

What Are CSPs?

Comprehensive Strategic Partnerships are ASEAN’s highest level of diplomatic engagement with dialogue partners. China and Australia were the first two countries to establish CSPs with ASEAN back in 2021.

Key Highlights

• ASEAN begins CSP reviews with China and Australia in 2026
• Reviews offer opportunities to deepen cooperation in trade, tech, and security
• ASEAN is adjusting to the post-US-China dealmaking G2 flux era
• Japan-Vietnam semiconductor deal reflects the region’s broader strategic upgrading
• ADB’s $70 billion connectivity pledge supports ASEAN infrastructure ambitions

The Bigger Picture

As US-China geopolitics evolve — with the Trump-Xi summit on the horizon — ASEAN faces the challenge of maintaining its centrality and strategic autonomy. The 2026 CSP reviews are seen as a chance to lock in upgraded commitments from both Beijing and Canberra.