The following companies may have unusual price changes in Singapore trading. Stock symbols are in parentheses, and share prices are from the previous close. Singapore’s Straits Times Index gained 0.3% to 3,229.69.

Biosensors International Group (BIG SP): The maker of drug-coated stents used to treat blocked arteries said third-quarter profit rose 8% to $13.3 million a from a year earlier. The stock was unchanged at $1.14.

Olam International (OLAM SP): The supplier of agriculture commodities said it plans to buy Britannia Food Ingredients Holdings and Britannia Storage and Distribution for US$50 million ($64.2 million). Olam lost 0.6% to $3.09.

Singapore Airlines (SIA SP): The world’s second-biggest carrier by market value said third-quarter profit fell 29% to $288.3 million from a year earlier after charges related to antitrust cargo fines. The company was expected to report a net profit of $299 million, according to the average estimate of six analysts surveyed by Bloomberg. The shares were unchanged at $15.04.

Singapore Post (SPOST SP): The operator of the city-state’s post offices said third-quarter net income was $43.8 million, compared with $44.1 million a year earlier. The stock lost 0.9% to $1.17.

SMRT Corp. (MRT SP): Singapore’s biggest commuter train operator said third-quarter profit increased 10% to $43 million from a year earlier. SMRT was unchanged at $2.05.

Sri Trang Agro-Industry Pcl (STA SP), Thailand’s biggest listed rubber producer, will start trading today. The company sold 280 million shares at $1.20 each in its initial share sale in Singapore, raising gross proceeds of $336 million. The share sale was 0.81 times subscribed.

Tiger Airways Holdings (TGR SP): The budget carrier backed by Singapore Airlines said third-quarter net income jumped to $22.6 million from $14.1 million a year earlier. Tiger Airways fell 0.6% to $1.77.