In January the long-standing issue of delimitation of the Tajik-Chinese border was resolved when the Tajik parliament agreed on a delimitation document from April 2010 between the two states. Tajikistan will concede a total of 1,112 sq km of territory to China from its eastern Badakhshan region. Although the government lauded the agreement as an important step in Chinese-Tajik relations, with the foreign minister, Hamrokhon Zarifi, calling it a diplomatic victory, leaders of some opposition parties viewed the agreement as unconstitutional. According to the head of the opposition Islamic Renaissance Party (IRP), Muhiddin Kabiri, Article 7 of the constitution states that the territory of Tajikistan is indivisible, and thus the cession of land to China is illegal. The leader of the Communist Party, Shodi Shobdolov, complained of the opaque nature of the deal. China's persistence in claiming land under Tajik control dates back to the Soviet era, when various mineral deposit sites were known to have been discovered in eastern Tajikistan. The Tajik-Chinese border delimitation treaty is the only agreement on borders that Tajikistan has with its four neighbours. Border discussions with Uzbekistan and the Kyrgyz Republic are stagnant, and discussions with Afghanistan have yet to take place.