US President Donald Trump and Chinese President Xi Jinping on Thursday agreed to further trade talks aimed at resolving disputes over tariffs and supplies of rare earth minerals at the heart of tensions between the world’s two largest economies.

Chinese President Xi Jinping and his US counterpart Donald Trump had lengthy talks over phone on Thursday to iron out differences over their tit-for-tat tariffs and agreed to have more talks between their trade representatives.

Earlier this week, China hit back on Trump’s claims the Asian country was in breach of a new trade agreement, struck last month following talks held in Geneva, Switzerland, countering that the U.S. itself was undermining the deal with new sanctions.