Stone quarrying is the largest Palestinian export, but it is choked by various Israeli restrictions, including the Israeli Civil Administrations failure to renew or grant new permits for Palestinian quarries in Area C since 1994. On the other hand, Israeli and international corporations, operate thriving quarrying businesses in the Occupied Palestinian Territory (OPT). Cemex, a Mexican corporation, has wholly owned Israeli Readymix Industries since 2005. Until June 2015, Readymix owned 50% of the shares in Yatir Quarry, located in the occupied West Bank. Cemex has profited from the exploitation of stone resources in the OPT. On 10 June 2015, the Israeli Antitrust Authority approved a request for a merger between Kfar Giladi Quarries and Yatir Quarry and less than a week later Lime & Stone was no longer listed as one of the owners of Yatir Quarry on the Israeli Registrar of Companies. Additionally, through its ownership of Readymix Industries, Cemex supplies building materials for construction of settlements, checkpoints (e.g. Hawara and Azzun-Atma) and for the Annexation Wall (along the Gilo Bridge). Readymix operates three aggregate factories in the illegal Israeli settlements of Mevo Horon, Mishor Adumim, and Atarot. HeidelbergCement, one of the largest construction materials companies in the world, owns three cement plants and one quarry in the occupied West Bank through its subsidiary Hanson Israel, which it acquired in 2007.