A new US tariff is expected to impact a significant portion of Singapore's exports to the US. The affected exports are valued at $7.4 billion, which is roughly one-third of Singapore's total exports to the US.

Further details on the tariff and its effects can be found through Reuters, which reported on the issue. The tariff in question is 12.5% and was imposed on July 24.

Information on the specific products or industries affected by the tariff is not available in this brief, but more information can be obtained from the original source.