The panel built from coal's industrial waste.
China produces 80 million tonnes of coal gasification slag every year — most of it landfilled. Keli Keying converts it through two rounds of 1500°C plasma melting into all-glass-phase inorganic fiber panels. Class A fire, zero formaldehyde, antibacterial, marine-certified. Installed in commercial buildings, hospitals, ships and public infrastructure across China.
What It Is
1500°C double melting. Glass-phase precision.
Coal gasification slag — the industrial by-product of China's 400+ large coal chemical plants — has accumulated to over 300 million tonnes. Rather than landfilling it, Keli Keying's plasma melting system processes the slag through two separate 1500°C high-temperature melting cycles, reconstructing its mineral phase and chemical composition to produce all-glass-phase inorganic fibers. These are hot-pressed into panels and finished with HD 3D printing and electron beam curing — available in over 200 textures and colours including wood grain, marble and solid finishes.
Fire classification to EN 13501-1:2018 by SGS returned A2-s1,d0: FIGRA 15.1 W/s (limit 120), THR 1.3 MJ (limit 7.5), SMOGRA 6.7 m²/s² (limit 30), zero flaming droplets. Smoke toxicity t0 grade. All 14 carbonyl compounds including formaldehyde not detected. TVOC 19 µg/m³. Antibacterial rate ≥ 90%. Mould grade 0 (ASTM G21, 5 species, 28 days). Static bending strength 20 MPa indoor / 27 MPa outdoor. Salt spray resistance ≥ 4,000 hours. Radiation: internal/external index ≤ 1.0. Safe for children — EN 71-3 heavy metals pass.
Why It Matters
Specified across six sectors.
A2-s1,d0 fire classification meets post-Grenfell mandatory requirements for offices, schools, hospitals, airports and transport hubs. FIGRA 15.1 W/s — 12% of the limit. Installed in shopping centres, office buildings and high-speed rail stations across China.
Antibacterial rate ≥ 90%, mould grade 0, antiviral surface treatment, zero formaldehyde and resistant to disinfectants. Meets the stringent hygiene and cleanliness requirements of hospitals, laboratories and research facilities.
DNV-GL certified for shipbuilding. Salt spray resistance ≥ 4,000 hours, moisture resistance H3B3, frost resistance flexural ratio ≥ 70%. Ideal for chemical plants, smelters and coastal industrial environments.
Solid waste utilisation rate ≥ 95%. No wood, stone or virgin aggregate required. Replaces calcium silicate board, gypsum, cement fibre and aluminium cladding. 100% recyclable. Supports the UK's net-zero construction targets.
How it compares to traditional boards.
Class A (non-combustible) — EN 13501-1:2018 certified
Wood and gypsum fail. Stone and tile pass but are heavy.
~1T/m³ — lighter than all inorganic alternatives
Stone and tile: ~3T/m³. Calcium silicate: ~1.5T/m³.
Not detected — all 14 carbonyl compounds ND
Wood fibre boards emit formaldehyde. Stone carries radiation risk.
Grade 0 (ASTM G21) — zero growth across 5 fungal species
Gypsum absorbs moisture and grows mould. Calcium silicate absorbs too.
≥ 90% antibacterial rate — antiviral surface treatment included
No traditional board offers antibacterial properties as standard.
≥ 4,000 hours salt spray resistance — DNV-GL marine certified
Aluminium and gypsum degrade. Most boards untested.
≥ 900N indoor / ≥ 1,200N outdoor. Can be sawn, nailed, glued or dry-hung.
Tile and stone cannot be nailed. Gypsum has poor grip.
≥ 95% coal gasification slag — industrial waste diverted from landfill
All alternatives use virgin materials — stone, wood, calcium or aluminium.
UK Market Entry
Certified. Compliant. Ready for market.
The Rupan Inorganic Fiberboard is manufactured by Yulin Keli Keying Technology Co., Ltd. (100M yuan registered capital, 150,000 sqm production base, Shaanxi Province, China) — holder of 23 patents and 5 international certifications, with a strategic research partnership with the China Academy of Building Research. Completed projects include the Quebec Government (Canada) prefabricated housing scheme, Yulin Exhibition Hall and Shaanxi Coal Chemical Command Centre. Bagwell Group is the UK commercialisation partner. Independent certification: SGS (SDFTS25006607R01_EN, CANEC25023938701, GZF25-0037849-01, CANEC25007420703) and Qingdao Railway Detection (WT2025030033-1B). UK UKAS re-testing and UKCA marking in progress.
Bagwell Group
Bagwell Group
UK commercialisation partner bringing certified technologies to market.
Get In Touch
Request samples and technical data.
Available in three series — Prefabricated Compression, Interior Decorative and Exterior Decorative. Full SGS test reports, specifications and physical samples on request.