The politics of the global energy market have proved a powerful draw to many outsiders as well, from Iran to India and Pakistan, which are attending the meeting as observers.

• 中国拥有一些最大的制造商.；从伊朗到印度和巴基斯坦全球能源市场的政策已经证明对许多局外人有强大吸引，他们以观察员身份参加了会议。