SYDNEY, Dec 21 (Reuters) - Australia's antitrust regulator blocked an asset transfer deal between Telstra and TPG, the country's No.1 and No.2 wireless internet firms, citing competition concerns, setting the scene for a legal battle over access to four million customers.
In a deal announced in May, Telstra Group (TLS.AX) was to buy spectrum - airwaves which carry wireless internet - and transmission towers from TPG Telecom Ltd (TPG.AX), while TPG would keep selling 4G and 5G coverage using what would become Telstra's infrastructure.
3 wireless internet provider Optus, owned by Singapore Telecommunications (STEL.SI), opposed the deal saying it would build Telstra's market dominance.
The decision sets up a second legal showdown between TPG and the ACCC in just over two years.
"By knocking back this deal, the ACCC has helped ensure that our regional communities will continue to benefit from competition," said Optus CEO Kelly Bayer Rosmarin in a statement.