We took part in the Mines Paris Research Day 2026, held on 23 June at 60 boulevard Saint Michel, Paris. The event is Mines Paris – PSL's annual gathering under the theme "Science & Industrie," bringing together researchers, companies, and startups around four scientific and industrial challenges: energy transition, resource sovereignty, data & AI, and decarbonization.

Lprint showed how PCBs could be produced with our more sustainable process under the Décarbonation track with our research partners from CEMEF (Centre de mise en forme des matériaux, Mines Paris – PSL).
Decarbonization and sustainability are getting real attention in the PCB industry right now, as the numbers behind conventional, etching-based PCB manufacturing are hard to ignore:
- 70,000+ tonnes of copper lost every year worldwide in etching effluents
- 1.09 tonnes of water consumed per m² of PCB
- 1.5 to 3.5 liters of spent etchant per m² — roughly 1 billion m³ of toxic waste globally per year
- 283 kg CO₂-eq. per m² of PCB produced conventionally
Lprint uses a process that has no etching, no toxic effluents, no copper loss, and drastically reduces water use in the process.
One of the highlights of the day was presenting and handing over one of our boards to the French Minister of Labour and Solidarity, Jean-Pierre Farandou.

