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And starting Monday, a security force of 700,000 people, who are mainly capital volunteers, went on patrol during daytime hours. Their focus is not only subways and bus stations, but also shopping malls and markets where crowds gather.

Analysts said the index, along with the renewed expansion momentum of China's manufacturing sector last month, signaled improvement in the economic situation, though policies to cushion downside pressure are still needed amid intensified trade friction between China and the United States.

Analysts said the establishment and improvement of the energy security reserve system will ensure the development of the country's strategic energy resources, improve the energy forecast, warning and emergency handling mechanism.

Angela Santomero

Analysts in Washington and Beijing have said trade and security issues, including the Korean Peninsula situation, will be highlighted during the trip.