Gold prices edged higher on Wednesday as uncertainty surrounding the finalisation of a U.S.-China trade agreement weighed on sentiment and fuelled some safe-haven buying, with investors awaiting key U.

One expert said he expected loosened controls on U.S. exports of semiconductors in exchange for China's releasing of more rare earths.

This week will bring consumer-price index and producer-price index data from May, providing new readings on inflation and how prices have changed as a result of tariff policies. Meanwhile, Apple is hosting its annual Worldwide Developers Conference,