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# Giraffe Bio: Argentine Startup Raises US$6.4M to Get More Copper From Existing Mines
- URL: https://www.theinvestorsociety.com/giraffe-bio-argentine-startup-raises-us-6-4m-to-get-more-copper-from-existing-mines/
- Published: 2026-10-16T22:00:00.000Z
- Updated: 2026-10-16T21:59:59.000Z
- Author: The Editor

Giraffe Bio, an Argentine biotech startup founded in 2024 by Alejandro Buffo Sempé and Juan Pablo Fernández, has raised a US$6.4 million seed round led by Orion Industrial Ventures. BHP Ventures, the venture arm of the world's largest mining company, joined along with Twynam, AIR Capital and Baruch Future Ventures. TechCrunch first reported the round on October 13, 2026\. Buffo Sempé is the company's CEO. The startup operates in Chile and was the first Latin American company selected for Breakthrough Energy's Fellows program, according to LatamList.

The company grows engineered microbes in bioreactors to produce compounds designed for the mineral makeup of each specific mine. Those compounds are then added to flotation, the step where chemicals help valuable minerals float so they can be skimmed off. Because the molecules bind more tightly to copper, more of the metal can be recovered. Giraffe Bio is also developing "depressors" that pull impurities such as arsenic out of the process, which could replace toxic chemicals now in common use. The funds will go toward scaling production, industrial trials, research and hiring.

## Market Context

Copper demand is rising with power grid upgrades, electric vehicles and the buildout of AI data centers. An S&P Global study cited by TechCrunch estimates supply could fall 25% short of demand by 2040\. Miners usually add supply by opening new mines, which is slow, expensive and uncertain: only about 0.3% of prospective mines ever reach production. That makes squeezing more metal out of operating mines an attractive alternative. Giraffe Bio claims its biomolecules can lift copper recovery by up to 5%, while most producers would consider a 1% to 2% gain a success.

Giraffe Bio is part of a growing group of startups applying biology to copper. Endolith (about US$14 million raised), Ceibo (about US$30 million) and Transition Metal Solutions focus mainly on heap leaching, using live microbes or nutrients to help them work. Giraffe Bio targets flotation instead and avoids keeping microbes alive inside the mine. Dealroom ranks the round in the 97th percentile of deep tech seed deals in Argentina.

## Key Signal

> "We can leverage all of the biological machinery without having to deal with keeping alive a microbe." Alejandro Buffo Sempé, Co-founder and CEO, Giraffe Bio

## Regional Relevance

For the United States, copper has become a strategic concern. The metal is central to grid expansion, electric vehicles and data centers, and Washington's 2025 tariffs on imported copper products put supply security at the top of the agenda. Technologies that raise output from existing mines could ease supply pressure faster than new projects, which can take more than a decade to permit and build. BHP Ventures' participation also links the startup to one of the largest copper producers in the Americas.

For Argentina and Chile, the deal shows a different way to take part in the copper boom. Chile is the world's largest copper producer, and Argentina is trying to develop major copper projects in the Andes after years with little output. Giraffe Bio offers the region a chance to export technology and know-how, not just ore. It also adds to a small but growing list of Argentine deep tech startups attracting global industrial investors.

## The Other Side

**Will the 5% gain hold at full scale?** The figure comes from the company, and no pilot or industrial trial results have been made public. Laboratory results in mineral processing often weaken once they meet the variability of a real plant.

**Will mines change a process that already works?** Flotation lines are expensive, tightly managed operations. Plant managers may hesitate to add a new reagent that changes output or requires new handling, even if it promises higher recovery.

**Can custom molecules compete on cost?** Traditional flotation chemicals are cheap commodities sold in bulk. Making a tailored compound for each mine adds work at every new site, and the company has not shared pricing or production costs. BHP Ventures' stake is an investment, not a commercial contract.

## Sources & Transparency

- [Argentine Giraffe Bio raises $6.4M seed round to improve copper recovery](https://latamlist.com/argentine-giraffe-bio-raises-6-4m-seed-round-to-improve-copper-recovery/?ref=theinvestorsociety.com)
- [Exclusive: Giraffe Bio aims its bespoke biomolecules at the looming copper shortage](https://techcrunch.com/2026/10/13/giraffe-bio-aims-its-bespoke-biomolecules-at-the-looming-copper-shortage/?ref=theinvestorsociety.com)
- [Giraffe Bio raises $6.4M to squeeze more copper from existing mines](https://dealroom.co/news/162162-giraffe-bio-raises-6-4m-to-squeeze-more-copper-from-existing-mines/?ref=theinvestorsociety.com)
- [Giraffe Bio Raises $6.4 Million to Improve Copper Recovery](https://www.tokenpost.com/news/business/31143?ref=theinvestorsociety.com)
- [Giraffe Bio raises $6.4M for biomolecules that increase copper recovery](https://atlabyte.com/en/news/giraffe-bio-raises-6-4m-for-biomolecules-that-increase-copper-recovery?ref=theinvestorsociety.com)