A staff member works at a workshop of the Shenyang branch of GONVVAMA in Shenyang, northeast China's Liaoning Province, Feb. 18, 2020. Some 60 staff members have returned to work at the plant of the Shenyang branch of GONVVAMA and about 70 percent of the production capacity of the plant has been resumed after comprehensive measures taken to prevent and control the epidemic. (Xinhua/Yang Qing)

Workers are busy at a tilapia processing line in an aquatic product company in Chengmai, a county of south China's Hainan Province, Feb. 18, 2020. The aquatic product export enterprises in Hainan resumed work recently under strict measures taken to prevent and control the novel coronavirus epidemic. (Xinhua/Guo Cheng)

A worker is busy at a tilapia processing line in an aquatic product company in Chengmai, a county of south China's Hainan Province, Feb. 18, 2020. The aquatic product export enterprises in Hainan resumed work recently under strict measures taken to prevent and control the novel coronavirus epidemic. (Xinhua/Guo Cheng)

Workers are busy at a tilapia processing line in an aquatic product company in Chengmai, a county of south China's Hainan Province, Feb. 18, 2020. The aquatic product export enterprises in Hainan resumed work recently under strict measures taken to prevent and control the novel coronavirus epidemic. (Xinhua/Guo Cheng)

Staff members work at a workshop of the Shenyang branch of GONVVAMA in Shenyang, northeast China's Liaoning Province, Feb. 18, 2020. Some 60 staff members have returned to work at the plant of the Shenyang branch of GONVVAMA and about 70 percent of the production capacity of the plant has been resumed after comprehensive measures taken to prevent and control the epidemic. (Xinhua/Yang Qing)