Chlor-alkali · Rethought

Closer is better -
We produce chlorine where it's used.

Chlorum builds, owns, and operates small-scale chlor-alkali plants right where the demand is — replacing thousands of kilometers of hazardous trucking logistics with a short pipeline, or a short drive.

Founded 2014 3 countries Carbon neutral since 2020
THE THESIS

The business model is the innovation.

The chlor-alkali industry runs on a 100-year-old assumption: build at massive scale, then ship hazardous chemicals thousands of kilometers to wherever they're needed.

We broke that assumption. Chlorum builds modular plants at or next to our customers' sites — eliminating long-distance transport, cutting emissions, and unlocking tailor-made supply for industries the mega-plants overlook.

01 — The Industry

An essential building block

Chlor-alkali chemistry sits behind PVC, paper, water treatment, pharma, mining, and food. Salt, water, and electricity become the molecules that keep modern industry running.
~85M tons of chlorine produced globally each year — and demand keeps growing.
02 — The Problem

Shipping a deadly gas

Mega-plants concentrate production in a few hubs. Customers receive chlorine in pressurized tankers — costly, hazardous, and carbon-heavy.
Up to 3,000 km of road or rail, often through populated areas. One incident is one too many.
03 — The Solution

Make it where it's used

A small membrane plant on the customer's site, supplying everyone within a tight regional footprint. One pipeline replaces a thousand truck-miles.
~300 km service radius — most output goes to customers in the same region as the plant.
04 — The Business Model

Build · Own · Operate
(BOO)

Chlorum funds 100% of the plant. We design, install, and run it. The customer signs a long-term offtake — and never handles a chlorine tanker again.
100% capex coverage — your team focuses on production. We deliver chlorine, just-in-time.

Operating across three countries with nine plants — and a long pipeline of new partnerships in pulp & paper, mining, water utilities, and pharma.

Explore the model
Side by side

The same chemicals.
An entirely different supply chain.

Compare the traditional chlor-alkali model — distant mega-plants and tanker logistics — to the Chlorum onsite model. Same molecule. Lower risk. Lower carbon. Lower cost.

A · Traditional

Mega-plant → Tanker → Customer

High
Risk profile
High
CO₂ per ton
Long
Lead times
What we do
B · The Chlorum way

Onsite plant → Pipeline → Customer

~0
Transport risk
−65%
CO₂ per ton
Just-in-time
Delivery
Impact so far · Six Brazilian plants · Through 2026
3.22M t
12% hypochlorite displaced
107,300
Tanker loads avoided
~554M
Truck-km not traveled (round trip)
~593,000t
CO₂ not released · ~221M litres of diesel

Illustrative estimates. Cumulative figures for Chlorum's six Brazilian plants through 31 Dec 2026. Source: Chlorum internal calculations.

001

Modular by design

Plants scale from 5 to 50+ tons/day. Add capacity as your demand grows — no greenfield risk.

002

Mercury-free, always

Membrane technology only. No toxic effluents, no legacy environmental liabilities.

003

100% capex on us

Chlorum funds the build. You sign a long-term offtake and stay focused on your core business.

004

Carbon neutral since 2020

Renewable energy contracts and verified offsets. Zero-waste targets across the fleet by 2028.

Where we operate

Nine plants.
Three countries.
One playbook.

From our first onsite BOO plant in Brazil's Northeast to a newly acquired Iowa plant and a new U.S. build rising in Casa Grande, Arizona — each plant is shaped by the customer it serves.

Featured · Under Construction

Casa Grande

Arizona · USA

Chlorum's first U.S. facility, currently in construction. A 45 ton/day membrane plant serving water-treatment utilities across the American Southwest — bringing the BOO model to North America.

45t/d
Capacity
--
Online
Under Construction
Status
Solutions · Built for you

Tailor-made for the industries that need chemicals the most.

Three business lines, one model. We produce onsite, treat water, and complete the basket — so every customer has a single chemical partner.

Environment · ESG

A chemical company that doesn't cost the earth.

Carbon neutral since 2020. Mercury-free across every plant. Target for zero-waste operations by 2028.

We're not a finished product either. We measure our impact, work to reduce it, and publish both — every year.

100%
Renewable energy across all plants
0
Toxic mercury effluents — membrane process only
2020
First year carbon neutral. We've held it every year since.
2028
Target year for zero-waste operations across the fleet.
Read the report
In the press

Latest from Chlorum

All news
Mar 04 · 2026

Chlorum breaks ground on first U.S. facility in Casa Grande, Arizona

The 45 ton/day membrane plant marks the company's entry into North America, serving water-treatment utilities across the Southwest.

Press release · Arizona
Jan 22 · 2026

Five years carbon neutral: Chlorum publishes 2025 sustainability report

Verified Carbon Standard offsets, 100% renewable contracts, and a transparent path to zero-waste by 2028.

Sustainability · Report
Nov 11 · 2025

Canelones plant doubles capacity to serve Uruguayan paper sector

Modular expansion delivered onsite in 11 months — proving the BOO model scales with demand, not against it.

Operations · Uruguay
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