The Gulf Petrochemicals and Chemicals Association (GPCA) has said the volume of annual production of plastic industries in the GCC countries is set to grow by 73% in 2015 from the current levels of 13.6 million tonnes to 23.6 million tonnes, Arab News has reported. The share of Saudi companies is expected to fall from the current 75% to 66% by 2015, while the share of Abu Dhabi is set to increase to 4.2 million tonnes from its current level of 3 million tonnes, representing a CAGR rate of 71%, said GPCA secretary general, Abdulwahab Al-Sadoun. Abu Dhabi's total plastic production will grow by 18% to overall GCC production in 2015, thus doubling its current rate of 8%, he added.