Beijing: US Treasury Secretary Jacob Lew pressed Chinese leaders over computer hacking and for help with North Korea during two days of talks that ended on Wednesday.
Lew`s visit to Beijing was the first high-level contact between the two governments in six months as they re-engage following a hiatus during the Chinese leadership transition.
The White House has called for Beijing to take action to stop computer attacks aimed at stealing company secrets. Hundreds of cyberattacks have been traced to China, and a security firm said last month that it found a wave of attacks on 140 companies that originated in a building in Shanghai housing a military unit.
"This is a very serious threat to our economic interests. There was no mistaking how seriously we take this issue," Lew told reporters.
Chinese officials have denied their government is involved and say China also is a victim of cyberattacks.
In talks with Chinese leaders, Lew emphasized that Washington sees a distinction between criminal cyberattacks, which are a common threat, and spying by state-sponsored enterprises, said a senior American official who spoke on condition of anonymity in order to brief reporters. The official declined to say how Chinese officials responded.
On North Korea, Washington wants Beijing to use its status as the North`s main source of trade and aid to press Pyongyang to discard its nuclear programme.
"We made clear that the US views the provocative actions of North Korea as very serious and we will continue to pursue methods available to change the policy perspective in Pyongyang," Lew said. "We share a common objective of a denuclearized Korean Peninsula and we will continue to discuss it."
However, asked whether Washington was considering sanctions that might affect Chinese banks, Lew said US leaders want to avoid imposing burdens on the Chinese economy.
This week`s talks were the start of a series of meetings that will test the potential for cooperation between the world`s largest- and second-largest economies. Lew is the US economic envoy to an annual high-level strategic and economic dialogue between Washington and Beijing that is due to hold its next round this summer.