Chinese companies and residents sent more than US$110 billion out of the country in January alone, according to new estimates, as they continued to evade tightening capital controls amid another round of market turmoil. Surging capital outflows have become a source of growing concern around the world and left Beijing scrambling to support its currency. Recently released data showed the country's foreign exchange reserves, though still well above $3 trillion, at their lowest level in almost four years.