Group 1 - ADNOC and ADQ have established a joint venture, Taziz, which signed a contract worth $1.99 billion with China National Chemical Engineering Group for the construction of the UAE's first PVC production plant [1] - The PVC plant is a core component of a chlor-alkali complex with an annual capacity of 1.9 million tons, also producing VCM, EDC, and caustic soda to meet domestic supply and export demand [1] - The project is expected to be completed and operational by the fourth quarter of 2028 [1] Group 2 - Taziz is also developing supporting infrastructure for the chemical hub, including oil pipelines, marine terminals, and storage facilities, with investments from companies like Mitsui & Co. and GS Energy [1] - Earlier in February, Taziz signed a $1.7 billion contract with Samsung Engineering for the construction of a methanol plant with an annual capacity of 1.8 million tons [1]