G20 splits over response to excess capacity

G20 trade ministers have failed to reach full agreement on how to tackle structural excess capacity, exposing continued divisions over subsidies, tariffs and the rules governing competition between major economies.

The meeting in Milwaukee was chaired by US Trade Representative Jamieson Greer, whose government has made industrial overcapacity a central part of its case for a more interventionist trade policy. The US argues that extensive state support, particularly in China, allows production to exceed sustainable market demand and places competing manufacturers elsewhere under pressure.

In its G20 chair’s statement, the US Trade Representative said many members supported further work on structural excess capacity and production in sectors of concern, while a smaller group rejected the creation of a pathway towards coordinated action.

Agreement that a distortion exists does not settle the argument over how to respond. The US has relied heavily on tariffs, while the EU uses a mixture of trade defence investigations, subsidy controls and sector specific measures. Other economies remain wary that broadly defined action against overcapacity can become a justification for protectionism.

China sits at the centre of the debate because its industrial scale and state directed investment have transformed markets including steel, solar equipment, batteries and electric vehicles. Lower prices can benefit customers and accelerate investment, while prolonged oversupply can make production uneconomic for competitors operating under different financing and subsidy conditions.

The meeting also considered the World Trade Organization’s Most Favoured Nation principle, which generally requires countries to extend equivalent tariff treatment across WTO members. The US wants greater flexibility where it believes existing rules prevent an effective response to non-market practices.

British and European companies can be affected on both sides of the argument. Importers benefit from lower input prices and predictable tariff treatment, while manufacturers competing with heavily subsidised products may favour stronger trade defences. Multinational companies can therefore face conflicting commercial interests across sourcing, production and sales.

G20 ministers reached consensus in other areas, including a statement condemning the use of food trade as a coercive political tool. Discussions also covered forced labour, although the group again failed to secure unanimous support for a separate statement.

The fragmented result reflects the difficulty of using the G20 to build binding trade policy when its members operate under very different economic models. Even where governments agree that oversupply can damage markets, they may disagree sharply over which subsidies are unacceptable and when tariffs become proportionate.

That uncertainty is likely to persist as trade policy becomes more closely linked to national security, industrial strategy and domestic employment. Sourcing decisions, investment locations and market entry can now be altered quickly by measures introduced in response to industrial policies taking place in another jurisdiction.

The Milwaukee meeting has produced more evidence of a shared concern than a shared solution. Until major economies agree on common disciplines, governments are likely to continue building their own responses to excess capacity, increasing the importance of trade policy in corporate planning.