Abdul Latif Mansur, Taliban’s Minister of Energy and Water, traveled to Iran on an official visit on Saturday.
Mansur said that he will discuss with the Iranian side about the extension of the electricity contract, tariff, and other issues.
The trip occurred a day after Mullah Baradar's return from Iran.
An Iranian official has stated that during the meeting between Iran's Head of Department of Environment and Abdul Ghani Baradar, the Taliban's Deputy Prime Minister, a verbal agreement was achieved concerning the water rights from the Helmand River.
According to him, Mullah Baradar promised that the water rights would be given as soon as the conditions are favourable.
Baradar visited Tehran on November 4 and returned to Kabul on November 9.
During a week, he met with several Iranian officials, including the head of Iran's Department of Environment.