NDOLA, Zambia, June 27 (Xinhua) -- An expert on Thursday urged Zambia and other African nations to utilize the first China-Africa Economic and Trade Expo and gain tangible benefits.

Naison Ngoma, Copperbelt University Chancellor, said in an interview that China has demonstrated all it takes by building road infrastructure in Zambia to indicate the Asian country's commitment to strengthening bilateral relations.

"It was China that came to the aid of Zambia by constructing a railway line to the sea coast for last four decades and to date the railway line still remains a vital route for exports and imports of goods," he said.

He said China assisted Zambia in a most profound way.

The expert expressed optimism that China's agenda for Africa will benefit most African states.

The first China-Africa Economic and Trade Expo opened Thursday in Changsha, capital of central China's Hunan Province.

The three-day event has attracted more than 10,000 guests and traders, including those from 53 African countries, according to the organizing committee.

International organizations including the United Nations Industrial Development Organization, the World Food Programme, and the World Trade Organization, have sent representatives to the expo.