Hon David Parker The Government has today welcomed confirmation of waste remediation actions from Tiwai smelter owner Rio Tinto, including the removal of aluminium dross in Southland to the Tiwai site and paying the costs of doing so. That also involves taking on the $4 million in funding commitments of the Government, councils and landowners in relation to the dross stored in the former paper mill in Mataura. In a letter to Prime Minister Jacinda Ardern, Deputy Prime Minister Grant Robertson, Energy Minister Megan Woods and Environment Minister David Parker, Rio Tinto Chief Executive Jakob Stausholm said the company would make right its environmental performance at New Zealand Aluminium Smelters (NZAS).