He came up with the remarks during a meeting with Agriculture Minister Dr Abdur Razzaque at the secretariat.
Zhang said the Chinese firm will set up three agricultural processing industries in Bangladesh.
Praising Bangladesh for its development in health, education and economic sectors, he said China will import agricultural products from here.
The Chinese envoy also said his country will work with Bangladesh to curb terrorism and militancy.
He said China wants a solution to the current Rohingya crisis.
Meanwhile, the agriculture minister said the government is working to turn the country into a developed one by 2041, including modernising agriculture sector to ensure quality food and nutrition for all.
Replying to a query, he said, “Farmers are not getting fair prices of their produces. The government is working with utmost importance to ensure fair prices of paddy. We’re also thinking exporting rice.”
Zheng Tianzhuo, Director of the political section of the Chinese Embassy in Dhaka, and Hu Zhiying, attaché of the political section, were present at the meeting.