
Sines, Portugal · ZILS
Developing Europe's integrated flotation-reagent plant
Elythium is developing an integrated xanthates, NaHS and CS₂ plant at Sines — supplying copper and cobalt producers worldwide, with the Copperbelt as a major market.
20,000 tpa
SIBX xanthates
29,500 t/yr
NaHS 70% flake
20,000 tpa
CS₂ on site
~149
Permanent roles
Dec 2027
FID planned
2030
First production
The project
An integrated plant at Sines
Elythium (Insurex Technologies Limitada) is developing an integrated xanthates, NaHS and CS₂ plant at Sines, within Portugal's ZILS industrial zone. Once in operation, it will be the only merchant xanthate producer within the EU.
SIBX xanthates
20,000 tpa — sodium isobutyl xanthate
NaHS 70% flake
29,500 t/yr — sodium hydrosulphide
CS₂ on site
20,000 tpa as intermediate; surplus sold

Products
Three outputs, one integrated site
CS₂ is produced on site as an intermediate and feeds both the xanthate and NaHS lines, with surplus CS₂ sold to industrial users.
Markets & logistics
Built for the Copperbelt, via Lobito
Output serves copper and cobalt producers in all major producing regions. The Copperbelt (DRC/Zambia), reached via the Port of Lobito, is a major market — with a shorter supply route than long-haul supply from Asia.
Lobito Corridor
Sines → Lobito → Kolwezi
Lower transport CO₂
Qualitative — to be quantified once independently assessed
Why Sines
A serious European industrial project
Designed to EU standards, with permitting, Seveso and environmental assessment part of the development plan.
Only EU merchant xanthate producer
The only other EU producer makes xanthates solely for its own mines.
EU standards & Seveso
Permitting and environmental assessment are built into the plan.
Sines · ZILS
Established Portuguese industrial zone with deep-water port access.
~149 permanent roles
Operating roles once the plant is in operation.
Elythium is in the development phase. Plant scope, partners and timelines are indicative and subject to permitting, financing and final investment decision.
Talk to the Elythium team
General, offtake, technical and investment enquiries are handled privately through a single contact address.






