About 3,600 companies from more than 170 nations, regions and worldwide groups are taking part in the country's first national-level expo for imports, the Chinese government said.
"Risks and challenges have been growing" as "unilateral trade protectionism has been emerging", Xi said in a keynote speech at the opening ceremony of the first China International Import Expo, adding his country is eager to "voluntarily open its markets to the world".
Organisers say more than 3,000 foreign companies from 130 countries including the United States, Europe and across Asia, will put their products on display for potential Chinese buyers at the expo.
Chinese President Xi Jinping is expected to meet US President Donald Trump in Buenos Aires next month, immediately after the G20 leaders' summit, that could lead to a possible truce in the trade dispute. "Markets seemed to like the headline 'to cut import tariffs, ' but this plan was already announced in September and can only be milked so many times".
Davies said South Africa was participating in three main platforms at the expo - the Country Pavilion for Trade and Investment, Enterprise and Business, as well as Fair International Trade Forum.
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President Xi said that he will open up some of China's market sectors that were previously inaccessible to foreign companies.
Although Xi pledged to import $30 trillion of good over the next 15 years - up from $24 trillion in previous estimates - his policy initiatives were largely in line with previous statements.
Mr Ma, the billionaire owner of China's largest online shopping portal, made the headline-grabbing job-creation promise to Mr Trump a year ago, when Beijing was still courting the then newly elected President.
"China will never stop her steps to push forward an opening-up at a higher level, the building of an open world economy, and the construction of a community with a shared future for mankind".
Xi also said China which is the largest exporter of goods piling up huge trade deficits with most of the countries will import more.
In a day full of meetings, President Kenyatta also held talks with Chinese investors eyeing opportunities at the Lamu Port. "As incomes are rising in China, consumers want faster access to and a wider variety of high-quality products from around the world", said Alvin Liu, General Manager of Tmall Import and Export. "Global trade and investment are driven by the need of countries for mutual exchange and complementarity", he added.
"China's economy is truly performing well within the reasonable range, giving us a solid foundation for delivering the development goals for the whole year", Xi said.