The fourth China International Import Expo is projected to see a higher volume of transactions this year, the China Securities Journal reported on Tuesday, quoting experts' recent opinions.

From the purchasing side, more than 1,200 buyers with an annual import value of over $100 million have been attracted to this year's CIIE, and 39 trading groups and 599 subgroups have been drawn to the event for professional procurement, according to Sun Chenghai, deputy head of the CIIE Bureau.

From the exhibitor side, nearly 3,000 businesses from 127 countries and regions will participate in this year's CIIE. A total of 58 countries and three international organizations will take part in the country exhibition, which will see 15 countries joining this exhibition for the first time and five making their debut at the CIIE, according to Sun.

The total exhibition area of this year's CIIE will be further expanded to 366,000 square meters, compared with the 360,000 square meters during last year. Over 80 percent of Fortune Global 500 and industrial leaders who participated in the fair last year will return for the fourth CIIE, said Sun.

Data showed the world's major auction companies, high-end consumer goods companies, food dealers, automakers, industrial electric enterprises, medical equipment enterprises and cosmetic enterprises will debut large numbers of products, Sun added.

As China continues to open up to the outside world, the CIIE, seeing an increasing outflow effect, has become the bridge for countries that want to take the "fast train" of China's development, said Bai Ming, a senior research fellow with the Chinese Academy of International Trade and Economic Cooperation.