China and Japan compete as exports to ASEAN converge in 2025
ASEAN trade is undergoing a structural shift as Chinese exporters increasingly position the 11-member Southeast Asian region as a primary production and assembly base rather than a market for final consumer goods, intensifying direct competition with Japanese exporters across intermediate and capital goods sectors.
ASEAN Becomes Production Base As China-Japan Rivalry Mounts
Japan’s Upstream Role in Southeast Asian Manufacturing
The ASEAN region remains an important export destination for Japan, with Japanese enterprises maintaining production bases throughout Southeast Asia. Japanese suppliers occupied an upstream role, providing the intermediate and capital goods necessary for local manufacturing activity. These shipments characteristically include machinery, electrical equipment, chemicals, and automotive products.
However, trade patterns have shifted. Chinese exports to ASEAN have risen rapidly since 2021, while ASEAN exports to China have remained largely flat. At the same time, a distinct correlation has emerged between growing ASEAN exports to the United States and rising Chinese exports into Southeast Asia.
Tariff Pressures and the Shift to Downstream Assembly
Analysts observe that China is increasingly supplying intermediate and capital goods to ASEAN rather than finished consumer merchandise. This structural change mirrors the historical model established by advanced manufacturing economies like Japan, placing both Japan and China upstream while ASEAN handles downstream production and assembly.
Chinese firms have relocated certain final assembly processes to ASEAN nations to avoid additional United States tariffs. Although direct transshipment exports designed to obscure country-of-origin labeling face tighter regulatory curbs following actions implemented since the start of the second Trump administration, regional supply chain integration continues to deepen.
Convergence of Export Categories by 2025
By 2025, the principal export categories directed toward ASEAN by both China and Japan converged significantly, centering on electrical equipment, general machinery, and automobiles. Import breakdowns show that China’s market share is expanding across several traditional Japanese export strongholds, while Japan’s share experiences a gradual decline.

Economic growth within the ASEAN region is no longer translating into proportional export gains for Japanese firms in the manner observed previously. Intense competition now characterizes the market, driven by Chinese supply chains delivering lower-priced intermediate goods.
Pressure Mounts for High Value-Added Strategy
To capture growth, Japanese companies face mounting pressure to safeguard their competitive edge within high value-added sectors where direct rivalry with lower-priced Chinese alternatives can be avoided.