ZHENGZHOU - At an investment promotion conference held Wednesday in central China's Henan province, a Hong Kong official expressed hope for more investment from inland companies, which have witnessed booming development.

Victoria Tang, an official from Invest Hong Kong, said the region has been a favorite for inland companies due to its rich international market promotion experience and high-quality talent.

As a highly internationalized city, Hong Kong has advantages in finance, trade, investment and accounting, she said, adding that the city can promote mainland companies' products on the international market.

By the end of 2012, 721 inland companies had been listed in Hong Kong. Some 1,938 inland companies had invested in the region, compared with around 200 in 2004, with total non-financial investment hitting 46.5 billion U.S. dollars, data from the Ministry of Commerce showed.