GRAPHENERA
One atom thick. Infinitely engineered.
Melsiripura
Sri Lanka
Operating since 1800s
97% – 99.99% carbon purity
200+ years of deposits
One of the world’s rarest
natural graphite resources.
Long before silicon, before steel, before industry knew its name - carbon was folding itself into perfect hexagons, deep beneath Sri Lanka.
The Ragedara vein graphite deposit is one of the world’s rarest and highest-quality natural graphite resources. Unlike conventional open-pit mines, our operations use environmentally responsible underground methods with minimal surface impact. Our veins naturally contain exceptional carbon purity from 97% to 99.99%.
Operating since the 1800s, Ragedara has long been one of the world’s most significant graphite mines. During the World War II era, exports reportedly reached nearly 18,000 metric tons annually - supplying premium graphite as a global benchmark for quality and performance.
Today, Graphenera focuses on transforming premium Sri Lankan vein graphite into advanced value-added carbon materials - mono-layer and few-layer graphene, GO dispersions, reduced graphene oxide, conductive graphite, and high-performance industrial grease.
Different forms.
One material.
99.99% before we begin.
Most graphene producers start with synthetic precursors at 95-98% carbon. We start with naturally crystallised vein graphite that exceeds 99.99% purity before any processing.
Read the comparison→
Every batch, independently assayed.
XRD, Raman and SEM characterisation accompany every shipment. Our specifications are footnoted by independent laboratory reports.
See the lab reports→
Specify the form. Ship the spec.
Tell us your application, target volumes and timeline. We will respond within two business days with documentation and pricing.
Inquire now→From rare natural graphite to high-performance graphene.
Advanced carbon materials for next-generation technologies - produced with the discipline of a research lab and the consistency of a manufacturing line.
Characterised at every step. Verified independently.
Our materials undergo continuous scientific characterisation and quality verification using advanced analytical methods. We do not ship material we cannot explain in spectra - and we share those spectra with anyone serious enough to ask.
We work closely with researchers, engineers, laboratories, and industrial partners - including the Industrial Technology Institute (ITI), Sri Lanka and international university partners - to ensure consistent material quality and reliable performance.
Confirms exfoliation degree and structural defect characterisation across our sample range.
Quantifies the out-of-plane lattice constant and crystallite size of every batch.
High-resolution scanning electron microscopy verifies sheet uniformity at multiple magnifications.
Transmission electron microscopy confirms layer count and lattice structure at the atomic scale.
Four-probe measurement of bulk and surface conductivity, benchmarked against international standards.
Particle size analysis and distribution profiling for every shipped batch.
Tested by NUS Singapore. Top rankings, multiple categories.
Graphenera materials have gained international recognition through continuous research, development and performance evaluation.
In 2016, graphene materials derived from Sri Lankan vein graphite were tested by the National University of Singapore (NUS) in an international graphene evaluation programme, where the material achieved top rankings across multiple performance categories.
This recognition reinforced the exceptional quality of Sri Lankan vein graphite as one of the finest natural sources for advanced graphene production.
Numbers, not narrative. Independently verified.
Natural carbon content of Ragedara vein graphite - 97% to 99.99% range.
Conductivity of Ragedara Special Conductive Graphite. Tested by Industrial Technology Institute (ITI), Sri Lanka - 2024.
28-day compressive strength uplift in GO-modified concrete, tested in Australia.
Estimated extractable life of the Ragedara seam at present operating capacity.
Green graphene. By geology and design.
Graphenera is committed to environmentally responsible mining and advanced material production. Sustainability is not bolted onto our process - it is a consequence of starting with a naturally pure source.
Our underground vein mining method minimises land disturbance while supporting long-term sustainable resource utilisation and high-value material innovation.
Environmentally responsible underground vein mining method. Minimises land disturbance and surface impact, leaving the ecology around the seam untouched.
Our processing facilities run on 100% solar energy for major factory operations - supporting cleaner production and reducing environmental impact.
Strict no-child-labour policies. Safe working environments, ethical sourcing standards, and long-term employee welfare commitments at every level.
Because the source starts at 97–99.99% pure, we do not need aggressive chemistry to bring it to specification. The geology has done the work.
Excellence is not added. It is exposed.
Where one material
changes many industries.
Batteries, supercapacitors, fuel cells.
Cement and concrete enhancement.
Polymer and composite reinforcement.
Conductive inks, anti-corrosion coatings.
Heat dissipation in compute and power electronics.
Sensors, smart devices, EMI shielding.
Desalination membranes, advanced filtration.
Industrial greases, additives.
Field notes from the seam.
Quarterly updates from the lab and the mine. Research developments, partner news, and the occasional photograph from Ragedara. No marketing.
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We actively collaborate.
Graphenera welcomes global partnerships for research, product development, and commercial-scale graphene applications. If you fall into one of the five categories below, we would like to hear from you.