Stocks to watch on the Australian stock exchange at noon on Wednesday:
AIO - ASCIANO - up $1.24, or 18.67 per cent, at $7.89
Ports and rail operator Asciano is in talks about a $8.8 billion takeover offer from a Canadian-based infrastructure group.
ORG - ORIGIN - up 10.00 cents, or 0.83 per cent, at $12.07
The Clean Energy Finance Corporation has agreed to help energy company Origin drive an increase in the use of solar.
TGR - TASSAL GROUP - up 26.00 cents, or 7.81 per cent, at $3.59
Salmon farmer Tassal has finalised a deal to buy NSW seafood business De Costi.
WPL - WOODSIDE PETROLEUM - up 44.5 cents, or 1.3 per cent, at $34.675
Woodside Petroleum says it's on track to make a final decision on its key Browse gas project at the end of 2016 as it pushes ahead with engineering and design work.