During her high-stakes trip to Beijing to revive deteriorating relations, US Commerce Secretary Gina Raimondo on Tuesday rejected an appeal by Chinese leaders to reduce American export controls on technology that can be possibly used for military purposes. US President Joe Biden had earlier issued an order to restrict US investment in Chinese companies that are involved in military development.During her high-stakes trip to Beijing to revive deteriorating relations, US Commerce Secretary Gina Raimondo on Tuesday rejected an appeal by Chinese leaders to reduce American export controls on technology that can be possibly used for military purposes. US President Joe Biden had earlier issued an order to restrict US investment in Chinese companies that are involved in military development.