Singapore shares may open higher on Tuesday, inspired by strong gains on Wall Street with the S&P 500 closing at a four-month high overnight on a flurry of positive corporate news.

The following companies may have unusual price changes in Singapore trading today. Share prices are from the previous close. Singapore’s Straits Times Index gained 0.2% to 3,080.98.

Shipping companies: The Baltic Dry Index of commodity-shipping rates fell 1.8% in London yesterday, taking its six-day decline to 12%. Cosco Corp. Singapore (COS SP), a China-based shipbuilder that also operates bulk carriers, slid 0.6% to $1.71. Mercator Lines Singapore (MRLN SP), an Indian bulk carrier, was unchanged at 27.5 cents.

Singapore-listed commodities firm Noble Group (NOBG.SI) may be in focus after it agreed to acquire the retail commodity marketing operations of the joint venture between Sempra Energy (SRE.N) and The Royal Bank of Scotland (RBS.L) for US$317 million ($422.7 million).

Singapore Exchange (SGXL.SI), Asia’s second-largest bourse operator by market capitalisation, said on Monday it will begin clearing over-the-counter trades in financial derivatives in October as part of a plan to broaden its range of financial products.

Aluminium product firm Midas Holdings (MIDA.SI) said it has launched a global offering of 220 million new shares at a maximum offer price of HK$6.10 per share, in conjunction with its secondary listing in Hong Kong. It expects to raise around HK$1.27 billion ($1.27 billion), which will be used to expand production in China’s passenger rail transport market.

Singapore-listed optical disc equipment maker Anwell Technologies (ANTE.SI), which is ramping up its solar panel business, said on Monday it has won a US$300 million ($400 million) contract to deliver solar panels.

Oil and gas firm RH Petrogas (RHPG.SI) said on Monday it has raised its stakes in two oil production sharing contracts in Indonesia for US$36.7 million ($48.9 million), which is expected to add around 2,600 barrels of oil per day to the firm and raise total production to 4,700.

Sinopipe Holdings (SPIP SP): The maker of pipes and fittings said it won a contract valued at 300 million yuan ($59.6 million) in Heilongjiang, China. The stock climbed 2.4% to 21.5 cents.

StarHub (STH SP), Singapore’s second-biggest phone company, was raised to “hold” from “sell” at Citigroup Inc. The brokerage increased its share-price estimate for StarHub to $2.45 from $2.15.

Tritech Group (TTGP SP): The provider of structural engineering services said it plans to raise $5.9 million selling 22 million shares at 27 cents apiece in a private placement. The stock climbed 7.7% to 35 cents on Sept 17.