A senior Iranian delegation arrived in Kabul on Monday for talks with Taliban officials on expanding trade, easing transit and boosting joint investment, the Taliban’s Ministry of Industry and Commerce said.

The delegation, led by Iran’s Minister of Industry, Mines and Trade Mohammad Atabak, includes members of parliament and other senior officials, according to the ministry.

In a statement, the ministry said the group had already held meetings with Taliban officials. The delegation is also expected to travel to Herat to visit Islam Qala port, the railway line and mining projects, and to meet with representatives of the Afghan private sector.

Although Tehran has not formally recognised the Taliban, Iran remains the group’s largest trading partner. Taliban officials say annual trade between the two sides is valued at about $4 billion.