Complaints against Chinese exporters and other protectionist measures may harm the global economic recovery, China’s Commerce Minister Chen Deming said.

“Since the start of the crisis, China has adopted fiscal and monetary policies and introduced stimulus,” Chen said in Singapore, where he is attending meetings of the Asia-Pacific Economic Cooperation (Apec) group. “But China has been hit by protectionist measures by other countries,” he said a day before President Barack Obama arrives in Shanghai.

Japanese Prime Minister Yukio Hatoyama said the nation’s economy remains “worrisome” and another supplementary budget is “probably” warranted.

The government aims to pay for additional spending with funds saved by freezing the previous administration’s projects, easing the impact on fiscal debt, Hatoyama told reporters in Singapore, where he’s attending a meeting of Asia-Pacific Economic Cooperation (Apec) leaders.

Chinese Premier Wen Jiabao said the world faces a gradual and uneven recovery from the worst financial crisis since the Great Depression.

“The worst is over,” Wen said in speech televised from a forum in Beijing. “The global economy is starting to recover but a total recovery will be a slow and bumpy process.”