The future of low-carbon materials starts with silica

We developed a disruptive way to produce and transport low-carbon silica in liquid form, reducing emissions and logistics constraints.

lowest prices

on the market

over 130

owned patents

80% less

CO2 emissions

high purity

precipitated silica

HSL Technologies is a deeptech company based in Aix‑en‑Provence that addresses one of industry’s most critical and overlooked carbon challenges: the production and logistics of silica.

Our patented technology transforms how precipitated silica is produced, transported, and delivered by shifting it from bulky solid form to an optimized, safe, and scalable liquid carrier. This breakthrough dramatically improves logistics efficiency while reducing CO₂ emissions by up to 80% across the entire value chain.

HSL’s solution enables key industries to decarbonize without compromising performance or competitiveness. At the point of delivery, low‑carbon silica is released with minimal energy input, while renewable hydrogen is generated on demand as a valuable co‑product, turning raw‑material logistics into an additional energy opportunity.

Security & QHSE

At HSL Technologies, safety and compliance are at the core of everything we do. Driven by strong leadership commitment, our HSE approach shapes every action to ensure a safe and responsible working environment.

our investors

latest news

Discover the most recent updates, groundbreaking innovations, and expert insights from the ever-evolving world of technology and beyond. In addition, our dedicated news section ensures you’re always informed about the key developments at HSL. Whether it’s industry trends, strategic shifts, or emerging tools, we keep you in the loop, so that, ultimately, you stay one step ahead.