Carbon emission allowances closed at 37.9 yuan (about 5.58 U.S. dollars) per tonne on Tuesday, 0.29 percent up from last transaction day at Guangzhou Emissions Exchange.

The benchmark Hang Seng Index of Hong Kong stocks fell 0.29 percent to close at 25,069.49 points on Tuesday.

The STAR Composite Index, which reflects the performance of stocks on China's sci-tech innovation board, closed 8.75 percent higher at 2,060.48 points on Tuesday.

The ChiNext Index, tracking China's Nasdaq-style board of growth enterprises, gained 7.05 percent to close at 3,685.97 points Tuesday.The ChiNext Index, together with the Shenzhen Component Index and other indices, reflects the performance of stocks listed on the Shenzhen Stock Exchange.

BEIJING, July 21 (Xinhua) -- Chinese stocks closed higher on Tuesday, with the benchmark Shanghai Composite Index up 1.79 percent to 3,864.37 points.The Shenzhen Component Index closed 4.81 percent higher at 14,264.29 points.

Hong Kong's Hang Seng Index rose 7.70 points, or 0.03 percent, to 25,150.75 points in the morning session on Tuesday.

The STAR Composite Index, which reflects the performance of stocks on China's sci-tech innovation board, opened 1.29 percent higher at 1,918.98 points on Tuesday. The STAR 50 Index, which tracks the 50 largest stocks listed on the board that also meet certain liquidity requirements, opened 1.68

The ChiNext Index, tracking China's Nasdaq-style board of growth enterprises, was up 0.76 percent to open at 3,469.22 points Tuesday. The ChiNext Index, together with the Shenzhen Component Index and other indices, reflects the performance of stocks listed on the Shenzhen Stock Exchange.

Chinese stocks opened higher on Tuesday, with the benchmark Shanghai Composite Index up 0.42 percent to open at 3,812.16 points. The Shenzhen Component Index opened 0.34 percent higher at 13,656.08 points.

The Hang Seng Index gained 7.49 points, or 0.03 percent, to open at 25,150.54 points on Tuesday.

U.S. stocks ended lower on Monday, as investors exercised caution ahead of a critical slate of mega-cap technology earnings and braced for a renewed flare-up in Middle East hostilities.The blue-chip Dow Jones Industrial Average dropped 307.16 points, or 0.59 percent, to 51,839.26. The benchmark S&P

Hong Kong's Hang Seng Index rose 510.53 points, or 2.08 percent, to close Monday's morning session at 25,072.77.

The STAR Composite Index, which reflects the performance of stocks on China's sci-tech innovation board, opened 2.56 percent higher at 1,988.5 points on Monday.

Hong Kong's Hang Seng Tech Index once rose 3.24 percent to 4,772.81 points during the morning session on Monday.

The ChiNext Index, tracking China's Nasdaq-style board of growth enterprises, was up 2.2 percent to open at 3,504.12 points Monday. The ChiNext Index, together with the Shenzhen Component Index and other indices, reflects the performance of stocks listed on the Shenzhen Stock Exchange.

Chinese stocks opened higher on Monday, with the benchmark Shanghai Composite Index up 0.73 percent to open at 3,791.66 points. The Shenzhen Component Index opened 1.18 percent higher at 13,869.06 points.

Hong Kong's Hang Seng Index rose 272.79 points, or 1.11 percent, to open at 24,835.03 points on Monday.

Hong Kong stocks ended lower on Friday with the benchmark Hang Seng Index down 1.78 percent to close at 24,562.24 points.The Hang Seng China Enterprises Index fell 2.18 percent to end at 8,136.73 points, and the Hang Seng Tech Index fell 4.37 percent to end at 4,623.17 points.

Hong Kong's Hang Seng Index fell 494.31 points, or 1.98 percent, to close Friday's morning session at 24,514.29.

The ChiNext Index, tracking China's Nasdaq-style board of growth enterprises, was down 1.36 percent to open at 3,642.06 points Friday.