The U.S. decision to launch a slew of new investigations into key trading partners has raised eyebrows among analysts, who question both the timing and objectives of the probes.

The move comes after the US Supreme Court struck down a key part of Donald Trump's tariffs policies last month.

Trump raises the stakes on China with Section 301 probe ahead of Beijing summit

The U.S. decision to launch a slew of new investigations into key trading partners has raised eyebrows among analysts, who question both the timing and objectives of the probes.

The forced-labor probes follow Section 301 investigations launched on Wednesday, targeting excess industrial capacity across more than a dozen economies.