Evidence · delivered plants, workshop, funded projects
Seaweed processing plant references & EU-funded projects
Sirputis seaweed processing plants, equipment and field programmes — delivered in Norway, Sweden and the Faroe Islands since 2019. Every figure is sourced: grant by grant from the agreements and CORDIS, plant by plant from the delivery records.
Since 2019 · Šiauliai, Lithuania · 5 EU-supported projects across the group (2 held by Sirputis) · patent granted 2025
6,000 t/ydesign capacity, wet + dry lines — Polar Algae, Hammerfest (70.6°N)
up to 3 km/hmechanised seeding at sea — tested in EU SeaMark with Ocean Rainforest
€1.4mEU / national support secured by the Sirputis / Metal Production group (≈ €1.65m incl. project partner KANDAS)
10–500 kg/hpilot pre-processing line under delivery to SINTEF (2026)
Seaweed processing plants & equipment delivered — Norway, Sweden, Faroe Islands
Sirputis designs the process and the machines; the Sirputis / Metal Production group fabricates them in Šiauliai with our partner network; the client or a local operator owns and runs the plant. Each entry carries its status — delivered, in delivery or field-tested. Scope descriptions are what has been announced publicly; contract values are available to qualified partners on request.
Polar Algae AS — Hammerfest, Norway
NORSEA POLARBASE · 70.6°N · WET + DRY LINES
Two custom processing lines — one for dry-seaweed processing and one for wet-seaweed processing — announced February 2023 and delivered to NorSea Polarbase for start-up in 2023. Further dry-line, wet-line and installation stages were ordered in 2026 and are in delivery. Design capacity 6,000 tonnes of seaweed per year across the wet and dry lines — our largest seaweed processing line to date.
delivered 2023 · expansion in delivery 2026 · 6,000 t/y design capacity
SINTEF — pre-processing pilot line
PILOT LINE · 10–500 KG/H · NORWAY
Washing, feeding, blanching, cooling, grinding, conveying, pressing and packing in one pilot-scale pre-processing line for SINTEF's seaweed research platform. Layout (14 × 9 m) accepted 8 April 2026; equipment in procurement and fabrication. What it delivers: a complete wet-processing pilot at 10–500 kg/h of wet seaweed.
2026 · in delivery
Ocean Rainforest — Faroe Islands
EU SEAMARK · HIGH-SPEED SEASEEDER
Mechanised direct-seeding machine developed with Ocean Rainforest and Seawiser inside the Horizon Europe SeaMark project, tested at sea at up to 3 km of grow line per hour.
2022 → 2026 · field-tested
SP-series screw presses
SCREW PRESSES · STAINLESS STEEL · DEWATERING
Sirputis-designed screw presses for seaweed dewatering, built to order in the group workshop and supplied as stand-alone machines or as the press stage of complete wet-processing lines.
built to order
PurSea AS — Norway
HARVEST-SIDE EQUIPMENT
Norwegian kelp farmer and field partner: harvest-side equipment for cultivation lines, with hands-on operational feedback flowing back into the designs.
field partner · repeat client
Nordic SeaFarm AB — Sweden
DECK EQUIPMENT · HARVESTER · CONVEYORS
Deck-mounted seeding equipment co-developed and measured on the farm vessel in 2023; harvester and conveyor equipment supplied since.
2023 · repeat client
Seaweed Solutions AS — Norway
WATER-JET HARVESTER · SEEDER TRIALS
Open-sea trials of the Sirputis twine-seeder prototype in 2023; water-jet harvesting equipment supplied since — the same gentle, blade-free principle as the patented harvester.
2023 · field-tested & supplied
Workshop & engineering capability — Šiauliai, Lithuania
- 01
Stainless-steel fabrication
Product-contact parts in AISI 316/316L, non-contact in 304/304L — cut, welded and assembled in the Sirputis / Metal Production group workshop. - 02
Automation & PLC in-house
Control cabinets, PLC programming and line automation are built by the same team that designs the process — no third-party black boxes. - 03
Process design office
General-arrangement drawings, process-flow diagrams and equipment schedules; the Sirputis biorefinery design tool matches capacity to the resource before a machine is specified. - 04
Pre-shipment testing & commissioning
Machines are run before they leave the workshop; installation, commissioning and operator training follow on site, then remote support.
Feeders & dosing
Double-screw feeders and dosing conveyors built to order.
Size reduction
Two-stage shredding and grinding lines for even particle size.
Patent granted — June 2025
Water-jet seaweed harvester: blade-free harvesting that preserves the holdfast (the anchoring "root") for regrowth and cleans the rope for reseeding. Developed with Metal Production and Norwegian seaweed growers. Read the water-jet harvester patent announcement →
EU-funded seaweed projects — the grant CV (SeaMark, Eurostars-3, I3)
Listed the way a diligence analyst reads them: programme, agreement number, period, budget and public support. Figures are taken from the grant agreements and the public CORDIS record. The same engineering feeds our coastal development programmes.
SeaMark — Seaweed-based market applications
Horizon Europe · HORIZON-CL6-2021-CIRCBIO-01 · Grant Agreement 101060379
Consortium of 23 partners coordinated by Ocean Rainforest (total budget €10.1m, EU contribution €8.3m). Sirputis developed the High-Speed SeaSeeder with Ocean Rainforest and Seawiser — mechanised direct seeding tested at sea at up to 3 km of grow line per hour.
- Period
- 1 Jul 2022 – 30 Jun 2026
- Sirputis budget
- €414,904
- Public support
- €260,371 EU (63%)
- Beneficiary
- UAB Sirputis
- Record
- CORDIS 101060379
SP-BIOACT — screw-press extraction of seaweed bioactives
I3-4-SEAWEED Open Call (EU Interregional Innovation Investments, GA 101161142) · Sub-grant agreement 2596023 · coordinator F6S
Biomass preparation and characterisation, screw-press trials and parameter optimisation, extract evaluation and bioactivity assessment, and process integration — turning press-side know-how into validated extraction parameters.
- Period
- 1 Feb 2026 – 31 Jan 2027
- Budget
- €60,000
- Public support
- €60,000 EU sub-grant (lump sum)
- Beneficiary
- UAB Sirputis
SEAWEED4IMRAS — Eurostars-3 R&D project
Eurostars-3 project 5519 (EUREKA, EU co-funded) · national contract S-E3-24-3
Transnational R&D project on seaweed processing technology carried out within the Sirputis / Metal Production engineering group — development and validation of processing equipment (details on request).
- Period
- Jul 2024 – Mar 2027
- Budget
- €446,848
- Public support
- €268,109 (60%)
- Beneficiary
- UAB Metal Production (group)
Seaweed stabilisation system — Inopažanga
EU structural funds via Innovation Agency Lithuania · project 02-019-K-0035 · beneficiary UAB Metal Production with partner KANDAS
Development of an innovative seaweed stabilisation system: sorting, pumping, high-shear mixing and sonication stages. Sirputis provides the process engineering within the group (not a party to the grant agreement); equipment deliveries 2026, installation and commissioning planned to 2027.
- Period
- Jul 2024 – Jul 2026 (grant); implementation to 2027
- Budget
- €1.35m (incl. partner €343k)
- Public support
- €997k (incl. partner €260k)
- Beneficiary
- UAB Metal Production (group) + KANDAS
Non-technological innovation — design, process & brand
Innovation Agency Lithuania · project 02-040-K-0170 · beneficiary UAB Metal Production
Design, process/organisational innovation and brand development to strengthen the group's integration into international value chains.
- Period
- Nov 2024 – Nov 2026
- Budget
- €122,800
- Public support
- €60,060
- Beneficiary
- UAB Metal Production (group)
Group totals across the five projects: ≈ €2.05m in Sirputis / Metal Production project budgets (≈ €2.4m incl. the KANDAS partner share). Public support: ≈ €1.4m in EU / national funding (≈ €1.65m incl. KANDAS). Two agreements are held by UAB Sirputis, three by UAB Metal Production. "Lump sum" means the sub-grant is paid as a fixed amount against delivered activities. Applications under evaluation are not listed — only signed agreements. Sources: CORDIS (SeaMark), sub-grant agreement 2596023 (I3-4-SEAWEED), grant agreements and the group grants register.
Industry memberships
Sirputis is a member of the European Seaweed Association, the Norwegian Seaweed Association, the Scottish Seaweed Industry Association and the Norwegian Seaweed Cluster — the networks where our seaweed processing equipment is specified and reviewed.
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