Business

Customers already buy calcium carbonate and calcium chloride.
CARBON-U changes where it comes from.

A staged business model: starting from proven C-PCC technology, generating first revenue from three oyster-shell products, then expanding to industrial by-products and CO₂ storage.

Demonstrated

BUSINESS 01

C-PCC Business

Calcium carbonate and construction materials from industrial by-products + CO₂. CARBON-U's technology-based business, backed by Regulation-Free Special Zone demonstration, 5 t/day production verification and supply to demand companies.

Customers: paper · textiles · plastics · rubber · PVC synthetic leather
Expansion: high-purity calcium carbonate (industrial by-products), planned for 2030

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Pilot

BUSINESS 02

Oyster Shell Business

First commercialization, starting from Tongyeong oyster shells. One feedstock, three products, diversified revenue.

OCC — demonstration and first sales targeted for 2027
Solid bio-CaCl₂ — planned for 2028
High-purity CaCO₃ — planned for 2029

View OCC →

Pilot · Development

BUSINESS 03

Sustainable Materials

Product	Replaces	Market reference
OCC	Imported or mined ground calcium carbonate	Plastic filler grade: approx. KRW 40 billion · 280,000 t/yr
Solid CaCl₂	Solid calcium chloride imported from China	Calcium chloride de-icer: approx. KRW 30 billion · 160,000 t (2022)
High-purity CaCO₃	High-purity grade calcium carbonate	Domestic production approx. 100,000 t · KRW 500,000–700,000/t

Source: CARBON-U IR materials (Oct 2026)

Future Business

BUSINESS 04

Carbon Storage

This is a future business that leads from using process residue as mine-void and ground fill (2030 plan) to an onshore CO₂ storage business (2031 target). It is not a commercial business today.

View structure →

Business Model

From feedstock to scale-up

01 Feedstock

Secure waste resourcesOyster shells · industrial by-products — materials that need treatment

02 Production

Product-specific processesProprietary process for each product (details not disclosed)

03 Products

Four revenue streamsOCC · CaCl₂ · high-purity CaCO₃ · fill material

04 Customers

Direct B2B salesPlastics & building materials · fine chemicals · de-icer buyers

05 Scale-up

Regional hubsTongyeong → additional hubs · multi-feedstock platform

REVENUE

Revenue

① Product sales — priced by grade
② Waste treatment fees — additional revenue (subject to negotiation)

SCALE-UP

Staged expansion

500 t/yr pilot — measure the key assumptions
20,000 t/yr OCC commercial line — upon passing the gate (2028–)
Three products → multi-feedstock platform (industrial by-products · incineration ash)

Roadmap 2026–2032

TODAY · NOW · NEXT · FUTURE

We don't mix the present with the future. Each stage opens with data from the stage before.

Today

TODAY

In hand · in progress

C-PCC technology · production verified
Industrial by-product upcycling technology
Patents 4+6 · 3 national R&D projects
Oyster-shell upcycling technology development

Now

NOW / PILOT

2026 4Q – 2027

OCC 500 t/yr pilot
Product verification · accredited testing
Certification (GR · Eco-label · NEP)
Customer validation · quotations

2028 – 2030 (planned)

Bio-CaCl₂ (2028)
High-purity CaCO₃ from oyster shells (2029)
High-purity CaCO₃ from industrial by-products · fill material (2030)
Production expansion to 20,000 t/yr

Future

FUTURE

2027 – 2032 (target)

Strategic alliances with major corporations (2027 IR round)
Onshore CO₂ storage (2031)
Carbon Circularity Platform
KOSDAQ listing (2032 target)

Years are company plans and may change with pilot results, financing and permits.

Investor Relations

From proven C-PCC technology
to a Carbon Circularity Platform

Detailed IR materials, including financial plans and investment terms, are provided separately on request for investment review.

Investment/IR inquiry Orders · project inquiry

Customers already buy calcium carbonate and calcium chloride.CARBON-U changes where it comes from.