Limestone powder and a green leaf representing tree-free stone paper

Sustainability

A paper that protects forests, rivers, and the climate.

Stone paper is not marketed as sustainable. It is built to be. Here is what the material actually delivers, and where we keep pushing for improvement.

Environmental Impact

The numbers that matter.

Comparative estimates based on publicly available LCA studies for calcium-carbonate-based paper versus standard coated wood-pulp paper.

0trees

Harvested per ton

Traditional paper requires approx. 20 mature trees per ton. Stone paper requires none.

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Water per ton

A single ton of wood-pulp paper can consume 25,000+ liters of water. Our process uses virtually none.

−40%CO₂

Lower footprint

Compared to standard coated paper, stone paper generally shows a significantly lower CO₂ footprint on a cradle-to-gate basis.

100%

Recyclable

Stone paper can be recycled back into new stone paper, supporting a closed-loop material cycle.

Crushed limestone powder with a fresh leaf, symbolizing tree-free paper
“Limestone is one of the most abundant materials on Earth. There is no reason modern paper should still cost us a forest.”

Golden Bridge Sustainability Statement

Our Six Pillars

How we think about sustainability, beyond the product itself.

(01)

Forest protection

By producing paper from abundant limestone rather than from forests, stone paper directly reduces pressure on natural ecosystems, biodiversity and carbon sinks.

(02)

Water stewardship

Conventional pulp-and-paper mills are among the most water-intensive industries on Earth. Stone paper production skips the water-based pulping step almost entirely.

(03)

Chemistry-free process

No chlorine bleach, no strong acids, no optical brighteners. The production line does not rely on the aggressive chemistry traditional paper mills require.

(04)

Circularity

Off-cuts are reintroduced into production. End-of-life stone paper can be recycled into new stone paper, and under sunlight it photodegrades into harmless CaCO₃ dust.

(05)

Short supply chains

Producing domestically in Germany means shorter transport distances, lower shipping emissions and fewer dependencies on imported paper from distant markets.

(06)

Responsible sourcing

We use limestone from certified European quarries and food-grade non-toxic HDPE resin, both fully traceable and compliant with EU regulations.

End of Life

It leaves the planet the way it came in.

Stone paper can be recycled back into stone paper through standard thermoplastic recycling streams because its HDPE binder allows the material to be remelted and reformed. This enables a closed material loop that conventional pulp paper cannot offer beyond a few cycles.

If stone paper is accidentally released into the environment, it photodegrades under UV exposure. Over time, the HDPE binder breaks down and the material reverts to its original form: harmless calcium carbonate powder, the same mineral that naturally occurs in chalk, limestone cliffs and seashells.

Stone paper does not release microplastics into water in the way conventional plastic films do, because its polymer matrix is structured around inert mineral particles that dominate the material by weight.

UN SDG Alignment

Supporting the UN Sustainable Development Goals.

Our manufacturing model contributes directly to the following Sustainable Development Goals defined by the United Nations.

SDG 6

Clean Water and Sanitation

SDG 9

Industry, Innovation & Infrastructure

SDG 12

Responsible Consumption & Production

SDG 13

Climate Action

SDG 15

Life on Land

Transition Support

Transitioning your brand to tree-free paper?

We help sustainability and procurement teams evaluate stone paper across your product line, from packaging and labels to printed materials and stationery.