Australia Blocks U.S.-Based Cosette’s $387.2 Million Takeover of Mayne Pharma
- Miguel Virgen, PhD Student in Business
- Nov 28, 2025
- 5 min read
Australia has taken a firm stance on protecting its critical medical supply chains by blocking a proposed $387.2 million takeover of Mayne Pharma by U.S.-based Cosette Pharmaceuticals. The decision, announced by Treasurer Jim Chalmers, underscores the Australian government’s growing caution around foreign acquisitions in sectors deemed vital to national security. Following guidance from the country’s foreign-investment watchdog, the government determined that no set of conditions would sufficiently safeguard Australian interests, ultimately choosing to halt the transaction entirely. This decision reflects a broader global trend in which nations are reassessing the balance between open investment flows and strategic control over essential industries.
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