There are still difficulties faced by foreign companies coming to China  and Chinese companies going overseas, but overall two-way movement is on the rise and there's great potential on both sides, experts said Monday in North China's Tianjin during the second day of this year's Summer Davos.

While there have been some negative reports on the business conditions for foreign companies in China, the opportunities are enormous and overall conditions are good, said Albert Ng, chairman, China, and managing partner, greater China, E&Y.

"There are small things, but generally speaking, the environment for foreign investment is very good," Ng, who has been consulting for companies coming to China for decades, told the Global Times on the sidelines of the Summer Davos.

"If that wasn't the case, there wouldn't be so many companies coming to China today," he said.

However, improvements are still needed, for example, some rules could be more predicable and transparent, Ng said, noting more foreign companies will pour in as the Chinese middle class continues to grow.

Chinese companies could also face difficulties when entering the overseas markets, but things are improving, Zhang Xiaoqiang, vice chairman of the China Center for International Economic Exchanges said.

"Domestic firms do face difficulties when expanding their presence in the global market, but the risks are no greater than what they might have encountered in the 1990s and the early 2000s," Zhang said.

There have been multiple cases of Chinese companies facing scrutiny in making acquisitions overseas, including in the US, but the trend of Chinese companies "going global" is unchanged, experts noted.

In the first five months of this year, Chinese companies invested in 4,136 companies in 151 countries and regions across the globe, according to data released by the Ministry of Commerce in June.

But Zhang said Chinese companies face risks because some of them still tend to "go global" via borrowing. That runs against the country's drive to deleverage, and the average debt to equity ratio of State-owned enterprises has reached 65 percent.

Zhang also noted that "with an increasing number of domestic companies expanding their presence abroad, rampant competition … has become a new problem."