The activist investor that sought to "Make BHP Great Again'' has another multinational miner in its sights: Sydney's Tribeca Investment Partners has launched a new campaign that seeks to break up the $7.2 billion diversified mining portfolio of Teck Resources.

Tribeca wrote to the board of Vancouver-based Teck last week, accusing it of underperforming peers and commodity prices and suggesting the company's chief executive of 15 years, Don Lindsay, had been in the role too long.