May 18, 2026 – 1.13pmTPG Telecom founder David Teoh’s attempts to buy Singapore’s M1 for $1.4 billion via ASX-listed Tuas have stalled after the local regulator said his company’s mobile phone brand, Simba, may have breached the law by using unapproved radio waves.Tuas’ shares tumbled 68 per cent on Monday to trade at $1.95 per share, their lowest since 2023, after Singapore’s Infocomm Media Development Authority said it had discovered Simba could have been using radio frequency bands that had not been assigned to the group.Subscribe to gift this articleGift 5 articles to anyone you choose each month when you subscribe.Subscribe nowAlready a subscriber? Fetching latest articles
David Teoh’s $1.4b Singapore telco expansion on ice due to regulator issues
The country’s telecommunications authority says Tuas’ mobile phone brand may have breached the law by using unapproved radio waves, sending its shares sharply lower.
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