SinoTech Energy will float 19.7 million American depositary shares (ADS), each representing two ordinary shares worth a maximum $4.75 each

HaloSource, a US-based company for water purification, issues $50m of new shares at its London Stock Exchange initial public offering and existing shareholders sell $30m of stock.

Naspers and Tencent-backed Mail.ru could be worth up to $5bn at its London listing.

The initial public offering could value Hulu at about $2bn could be filed with the US regulator this year and take place in the first half of next year, Reuters said.

UK bank takes 12.75% stake in Indian outsourcer having originally sold out in 2007.

Pacific Biosciences, a US-based gene sequencing company, plans to raise $200m on Nasdaq.

Flotation price of $16 per share for biofuels company Amyris less than French oil major Total's purchase of 20% of the company in July.

Spain-based oil group Repsol acquires a fifth of biofuels company AlgaEnergy.

Softbank-backed Betfair tries again for UK listing.