BEIJING (AP) — China is pressing Washington roll back punitive tariffs on Chinese goods as the two sides wrangle over terms of an interim trade deal.

A Ministry of Commerce spokesman, Gao Feng, said Thursday a tariff cut is an “important condition” of the tentative agreement announced last month.

Beijing said last week American negotiators agreed to roll back some tariffs on Chinese goods if an agreement went ahead. President Donald Trump denied that.

The two sides have raised tariffs on billions of dollars of each other’s goods in their fight over Beijing’s trade surplus and technology ambitions.

Gao said the two sides were “discussing in depth” terms of the agreement but gave no details.