Swiss companies Mercuria Energy Group and Partners Group have committed to investing over $6 billion in U.S. energy projects in a bid to ease trade tensions following new import tariffs imposed by Washington.

In August, U.S. President Donald Trump shocked Switzerland by introducing 39% import duties on Swiss products, citing the country’s trade surplus with the United States. The move prompted the Swiss government to work with major private firms to create an investment package aimed at narrowing the trade gap and persuading Washington to reduce the tariffs.

Sources familiar with the talks said the investment proposal—valued between $6 billion and $7 billion—was presented during Swiss Economy Minister Guy Parmelin’s visit to Washington on September 5. The plan includes large-scale investments in renewable energy, carbon capture, oil recovery, and natural gas infrastructure.

As part of the proposal, Partners Group plans to expand its North American pipeline network through ESENTIA, a U.S.-Mexico natural gas system, while Mercuria is preparing to fund several clean energy and oil production projects across the United States.

The Swiss government hopes the initiative will help cut the U.S. trade deficit and lead to a rollback of the new tariffs. Officials have also floated additional measures, such as building gold refineries in the U.S. to reduce gold imports from Switzerland and increasing defense procurements from American suppliers.

In a statement, the Swiss Economy Ministry said it remains committed to reaching a quick agreement with Washington. “Switzerland has refined its proposal to achieve a rapid deal,” the ministry said, adding that diplomatic discussions are still ongoing.

Mercuria and Partners Group declined to comment on the matter.

Analysts believe the investment effort underscores Switzerland’s strategy of using targeted business partnerships to resolve trade disputes while deepening its long-term economic relationship with the United States.