Dow today announced that Macquarie Asset Management has increased its minority equity stake in Diamond Infrastructure Solutions (Diamond) from 40 per cent to 49 per cent, providing Dow with an additional $540 million in proceeds, bringing the total transaction proceeds to approximately $3 billion. 

“This expanded partnership with Macquarie Asset Management reflects the strong trust and alignment between our organizations, laying the foundation for a long-term, value-driven collaboration,” said Jim Fitterling, Chair and CEO of Dow. 

Diamond Infrastructure Solutions, a dedicated infrastructure company with assets spanning the U.S. Gulf Coast, will continue to be majority-owned and operationally managed by Dow. The partnership aims to accelerate growth across sectors including energy, environment, infrastructure, and pipelines, serving more than 70 existing and new customers. 

In recent developments, Diamond has positioned itself at the forefront of sustainable innovation. It partnered with Danish climate tech startup Again to host the first US-based CO₂ transformation facility at its Texas City site. It also partnered with Third Pillar Solar to secure exclusive access to Diamond’s Texas reservoir system for potential deployment of up to 500 MW of floating solar. 

This strategic investment reinforces Dow’s commitment to advancing sustainable infrastructure solutions while leveraging Macquarie’s expertise in asset management to drive long-term growth and value creation.