World Trade Organization talks stalled on Monday after Brazil opposed a United States-led effort to extend the moratorium on customs duties for electronic transmissions, such as digital downloads, according to diplomats.

WTO Director-General Ngozi Okonjo-Iweala said the expiration of the e-commerce moratorium now permits countries to levy tariffs on electronic goods.

However, she added that the WTO hopes to eventually restore the moratorium, with Brazil and the U.S. working toward a possible agreement.

The moratorium bars countries from imposing tariffs on electronic transmissions, including software downloads, streaming services, and other digital products.

The marathon discussions at the WTO meeting in Cameroon did make some progress in drafting a plan for broader organizational reform, though formal agreements are still pending.

The talks will continue in Geneva, according to conference chair and Cameroon Trade Minister Luc Magloire Mbarga Atangana, with WTO officials indicating sessions are expected in May.

The negotiations were viewed as a test of the WTO’s relevance amid a year of global trade disruptions, including those caused by the war in Iran.

However, ministers could not agree to extend the e-commerce moratorium beyond two years due to objections from Brazil, officials said.