Beijing-based Chinese Cooperation

China is one of the world's fastest-growing economies, whose GDP expands more than 7 percent each year, the South Korean ministry said, noting that South Korea has gained a chance to make inroads into the large, fast-growing market by initialing the pact.

"The deal will be a new stimulus and growth engine for the South Korean economy," said Zhao.

Under the pact, South Korea will eliminate tariffs on 79 percent of all products, or 9,690 items, from China within 10 years after the implementation of the treaty.

In return, China will remove tariffs on 71 percent of all South Korean products, or 5,846 items.

Gu Xuebin, vice-president of the Beijing-based Chinese Academy of International Trade and Economic Cooperation, a think tank of the Ministry of Commerce, said that the China-South Korea FTA will provide the means and the impetus for progress toward a China-Japan-South Korea FTA and a Regional Comprehensive Economic Partnership.

CHINA, S. KOREA FACTBOX:

Number of Chinese tourists to S. Korea surged 41.6 percent year-on-year to reach 6.13 million in 2014, spending a total of 18.6 trillian won ($16.9 billion) with an average of 3.03 million won per person.

Bilateral trade increased 2.8 percent year-on-year to stand at $235.4 billion last year, among which exports to S. Korea were valued at $90.1 billion – up 8.5 percent year-on-year. Top on the exports' list are mechanical and electrical products (43.2%), base metals (16.3%) and chemical products (7.8%).

China has become S. Korea's largest trading partner, largest source of imports and No 1 export market. S. Korea is now China's fourth-largest trading partner after the European Union, the United States and Japan.

After beauty products, most popular S. Korean products in China are smartphones, home appliances, cars and fashion.