China and South Africa are two of the Brics members. Egypt, Ethiopia, Iran and the United Arab Emirates officially joined the Brics bloc on Jan 1. Mr Chai said the letter states that Thailand realises the importance of multilateralism and the increasing role of developing countries in the international arena. Mr Chai said Brics had invited non-member countries aspiring to join to participate in the 16th Brics summit in Kazan, Russia, from Oct 22 to 24. Attending the event would be an opportunity for Thailand to accelerate the membership process and enhance its role as a leading player among developing countries, he added.