Singapore’s Straits Times Index dropped 0.2% to 3,274.91 as of 9:20 a.m. Two stocks declined for each that rose in the benchmark equity index of 30 companies.

Shares on the measure trade at an average 14.9 times estimated earnings, compared with about 15.6 times at the end of 2010, according to data compiled by Bloomberg.

The following shares were among the most active in the market. Stock symbols are in parentheses after the company name.

Commodity suppliers: The Thomson Reuters/Jefferies CRB Index, which tracks prices of 19 commodities from copper to corn, fell 1.3% in New York yesterday.

Noble Group (NOBL SP), a Hong Kong-based commodities supplier, lost 0.4% to $2.30. Olam International (OLAM SP), a Singapore-based supplier of agricultural commodities, decreased 1.5% to $3.24.

China Taisan Technology Group (CTSAN SP), a maker of knitted fabric used in sports apparel, climbed 2.6% to 19.5 cents. The company said it will buy US$28 million ($36.3 million) of new machinery to boost production capacity, twice the amount it estimated earlier.

GMG Global (GGL SP), a Singapore-based owner of rubber plantations in West Africa, increased 3.4% to 30.5 cents. The company said shipments from its facilities in the Ivory Coast have resumed after delays last month caused by the nation’s political crisis.

Kim Eng Holdings (KEH SP), the Singaporean brokerage, which received a takeover offer from Malayan Banking Bhd. (MAY MK), surged 11% to $3.01 as it resumed trading today. Maybank, as Malaysia’s biggest lender by assets, will pay $3.10 for each Kim Eng share in a deal valued at $1.79 billion.

Mirach Energy (MENR SP), the explorer of oil and natural gas, advanced 5.6% to 9.5 cents. The company said it signed an agreement with Shanghai Petroleum and Natural Gas Co. to operate and seek new fields. Shanghai Petroleum is partly owned by China Petroleum and Chemical Corp. or Sinopec and CNOOC.