Chinese stocks closed lower Monday, with the benchmark Shanghai Composite Index down 0.50 percent to 3,280.46 points.

The Shenzhen Component Index closed 0.80 percent lower at 11,005.50 points. The ChiNext Index, which tracks China's NASDAQ-style board of growth enterprises, lost 1.32 percent to close at 1,755.81 points.

Combined turnover on the two bourses stood at around 381.2 billion yuan (about 57.8 billion U.S. dollars).

Losers outnumbered winners by 985 to 295 at Shanghai bourse and by 1,468 to 423 at Shenzhen.

Market sentiment was weighed as lock-up shares worth nearly 110 billion yuan will become tradable this week, the largest amount in a week this year, which will drain liquidity, analysts said.

Stocks of Apple's suppliers in China tumbled over iPhone X sales concerns. Suzhou Anjie Technology Co. shares plunged 9.5 percent to 25.8 yuan apiece. Lens Technology Co. declined 8.4 percent to 28.43 yuan a share.

Bucking the downward trend, shares of agriculture-related firms gained as investors bet on more support to be unveiled for the sector at the annual Central Rural Work Conference, which market rumors said would open this week.

Shares of Hunan Dakang International Food & Agriculture Co. and First Tractor Company both climbed by the daily 10 percent limit to 3.14 yuan and 7.98 yuan apiece, respectively. Yuan Longping High-tech Agriculture Co. gained 1.9 percent to 26.49 yuan a share.