Alcoa is in talks to sell its idle Massena East aluminum smelter in upstate New York to bitcoin mining firm NYDIG, according to comments from Alcoa chief executive Bill Oplinger in a Bloomberg interview.

The Massena East site sits along the St. Lawrence River and has been out of operation since 2014. The closure followed sustained pressure from high energy costs and global competition that reduced domestic aluminum production. The facility spans about 1,300 acres and contains heavy electrical infrastructure built for continuous industrial use.

Alcoa is pursuing a broader plan to divest a group of idle US smelter assets. The company has identified ten dormant sites for potential sale as it shifts focus toward higher-margin operations and reduces exposure to high-cost legacy facilities. The Massena East property is one of the most advanced cases in that program.

NYDIG, a bitcoin financial services firm linked to Stone Ridge, has expanded its presence in industrial-scale mining infrastructure over the past two years. The firm has built exposure to mining operations through partnerships and acquisitions, including involvement with Coinmint at the Massena campus under a long-term lease structure tied to the site’s power capacity.

The Massena East smelter draws power from the New York Power Authority hydropower system. That access to stable electricity supply forms a key part of the site’s value for digital asset mining operations. Aluminum smelters require large and constant energy input, and their grid connections often remain intact after shutdown. That infrastructure reduces the time required for conversion into data center or mining use.

NYDIG holds a strategic stake in Coinmint, the operator of bitcoin mining equipment at the broader Massena campus. Coinmint has hosted mining clients under existing arrangements tied to Alcoa’s property and power agreements. The planned transaction would transfer control of the smelter site itself to NYDIG and expand its operational footprint in the region.

Alcoa and NYDIG have discussed terms for a transfer structure that includes ownership of the land, electrical systems, and remaining industrial assets. Both sides aim to complete the transaction within the middle portion of the year, pending final agreements and regulatory steps.

Bitcoin mining and high-performance computing

The proposed sale follows a broader trend across North America in which retired aluminum smelters and other heavy industrial sites shift toward digital infrastructure use. These sites offer large power connections, transmission access, and industrial zoning that suit bitcoin mining and high-performance computing workloads.

Century Aluminum completed a similar transaction involving its Hawesville, Kentucky smelter, which was sold to TeraWulf for redevelopment into a data center and computing campus. That deal reflected growing demand for sites with secured energy capacity.

NYDIG continues to build its position in bitcoin mining through acquisitions of power-linked assets and mining operations across multiple US states. The firm has acquired capacity in North Dakota, South Dakota, Pennsylvania, and Missouri, and has added additional mining infrastructure through separate transactions involving energy-focused companies.

The Alcoa–NYDIG deal, if completed, would place one of the largest US aluminum production sites under bitcoin mining ownership and extend the reuse of legacy industrial power infrastructure for digital asset operations.