Another Beijing company, OriginWater, was founded in 2001, four years after Nuctech. Both companies originated in Zhongguancun, known as China's Silicon Valley.

Banking on domestic success in providing safe water solution, OriginWater has sold products in countries including Pakistan and Sri Lanka.

Nano-membrane filters developed by the company can block the pollutants and purify water. Vice manager He Yuanping said the technology could have broad applications in water-scarce countries and regions.

"We are working on an agreement in Oman," He said.

He said it is still not easy to seek business in foreign countries.

"It is important to understand the market before we move in, its legal system and finance situations. We find it easier to work with Chinese companies that are already successful in foreign markets," he said.

"Borrow a boat to sail in the sea -- we will find more ways to use the opportunities brought by the Belt and Road Initiative," he said.

"Chinese companies are developing fast, especially hi-tech firms. Many are ready to create value and spread their technology," said Zhang Xiaodong, head of the promotion association of Belt and Road in Zhongguancun.

MIUI, the phone operating system developed by Chinese smart phone maker Xiaomi, has gathered many fans.

Evgeny Drozdov founded an online forum for MIUI in Russia. "There are about 70,000 clicks every day," he said.

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