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"Economic and trade cooperation between China and Russia has rich contents and covers a wide range of fields. The two countries will cement the positive momentum of rapid growth in trade and boost mutual investment and cooperation in major projects of strategic significance," Li said.

"Discarded household appliances have great value in recycling. Green recycling will become the core competence of TCL in the future," Wang said.

"Electric vehicles will play an increasingly important role in the demand for metals, including cobalt, lithium and nickel for batteries, copper for charging stations and aluminum for lightweight auto bodies," said Zhu Yi, senior analyst of metals and mining at Bloomberg Intelligence.

"Every time I went to the villages, local villagers welcomed me warmly. Though it is not easy, I think it is worthwhile," Li said.

"Efforts have been made in recruiting security agencies, as well as in training and supervising them. Cameras with 24-hour surveillance have been set in tourist resorts, even in the outside archaeological sites," Tekaia noted.