US President Donald Trump and Chinese President Xi Jinping spoke by phone for the first time since the start of the trade war. The call, focused on trade, was described by Trump as “very positive.”

Both leaders exchanged invitations for official visits, though only China’s invitation to Trump was confirmed by Beijing, BBC reported.

Discussions come after a trade agreement stalled, with China blaming new US tech restrictions and the US accusing China of not resuming important mineral exports.

Trump defended the new Chinese student visa requirements. In order to prevent conflict, Xi cautioned the United States to handle Taiwan carefully, as stated by BBC.

Despite tensions, both sides signaled a willingness to keep talks open.