Biosolvents & green solvents

01Overview and value chain

Markers: [EC: REACH chemical registration (EC 1907/2006) + EU Industrial Emissions Directive 2010/75/EU (VOC) | OECD: Industrial biotechnology | Regulator: REACH (EU), EPA (US)]

Biosolvents are renewable-carbon drop-in replacements for petrochemical solvents such as methyl ethyl ketone (MEK), toluene, xylene and methylene chloride, used in paints and coatings, industrial degreasing, electronics cleaning, adhesives, and pharmaceutical processing — driven by REACH authorisation pressure on hazardous solvents, the EU Industrial Emissions Directive’s VOC emission caps, and EPA VOC-exempt solvent listing. The dominant commercial chemistry is ethyl lactate: Corbion’s Biviture brand markets high-purity ethyl L-lactate as a green solvent across ten key industries, sourced from sugarcane-fermented lactic acid; Galactic (Belgium) sells its Galactic bio-solvents line (Galasolv) via the ChemPoint and Comindex distribution networks alongside its broader lactic acid and lactates portfolio; and Vertec Biosolvents (United States, acquired by Shrieve Chemical Company) produces corn-derived ethyl lactate as a MEK replacement and has developed bioethanol-to-ethyl-acetate catalysis that eliminates the fossil feedstock dependency of conventional ethyl acetate production. BASF operates a parallel commercial route through biomass-balanced attribution: its BMBcert intermediates portfolio — expanded in July 2026 with three new REDcert2-certified additives (Dispex AA 4145 MB, Rheovis PU 1333 MB, Rheovis HS 1169 MB) for architectural coatings — allocates renewable carbon into existing solvent and intermediate families via mass-balance accounting of bio-based and fossil inputs within the Verbund. No dedicated Chinese or Indian biosolvent originator cleared source confirmation as of 2026.

The key directions of biosolvents & green solvents are:

1. Lactic-acid ester solvents (Lactic Acid Esterification Solvents): esterification of fermentation-derived lactic acid with ethanol to produce ethyl lactate, the dominant bio-derived drop-in solvent — Corbion’s Biviture, Galactic’s bio-solvents, Vertec’s corn-based products.
2. Bioethanol-derived solvents (Bioethanol-to-Ethyl-Acetate Catalysis): catalytic conversion of bioethanol to ethyl acetate, removing the fossil-feedstock dependency of conventional ethyl acetate production — Vertec Biosolvents.
3. Biomass-balanced attribution solvents (Biomass-Balanced Solvent Attribution): allocating renewable carbon from biomass feedstocks into existing solvent and intermediate product families via ISCC PLUS / REDcert2 mass-balance accounting within an integrated chemicals Verbund — BASF BMBcert.
4. VOC-exempt and substitution-grade formulations (VOC-Exempt Biosolvent Formulation): positioning bio-derived solvents as drop-in replacements for VOC-regulated petrochemical solvents (MEK, toluene, methylene chloride) under EPA VOC-exempt and REACH authorisation pressure — Vertec’s MEK-replacement positioning, the common regulatory driver across all four firms.

Sectoral value chain

[sugars / starches / bioethanol / biomass feedstock] ──> [fermentation to lactic acid or bioethanol]
                                                                       │
                                                       (intermediates: lactic acid, bioethanol)
                                                                       │
                                                                       ▼
[bio-derived solvent molecule] <─── [esterification or catalytic conversion] <───┘
                                                                       │
                                                                       ▼
                                                [paints, coatings, degreasing, pharma processing]

Value chain levels

Cross-cutting technologies of the sector:

• Lactic-acid esterification (Lactic Acid Esterification Solvents): acid-catalysed esterification of fermentation-derived L-lactic acid with ethanol to produce ethyl lactate — the dominant bio-derived solvent chemistry, shared by Corbion, Galactic and Vertec.
• Bioethanol-to-ethyl-acetate catalysis (Bioethanol-to-Ethyl-Acetate Catalysis): Vertec’s process converting bioethanol directly to ethyl acetate via catalytic dehydrogenation, removing the fossil-feedstock dependency of conventional ethyl acetate (which is normally produced from ethylene via the Wacker process).
• Mass-balance attribution (Biomass-Balanced Solvent Attribution): BASF’s BMBcert approach of allocating renewable carbon from biomass feedstocks into existing solvent and intermediate product families within an integrated chemicals Verbund, certified under ISCC PLUS / REDcert2 schemes.

02US

The US hosts the corn-based ethyl lactate producer Vertec Biosolvents, now operating under Shrieve Chemical Company ownership after a 2024 acquisition, with a bioethanol-to-ethyl-acetate catalysis platform eliminating the fossil feedstock dependency of conventional ethyl acetate production.

Vertec Biosolvents, EPA VOC framework

• Vertec Biosolvents (United States, Shrieve Chemical subsidiary): produces corn-derived ethyl lactate as a MEK replacement across paints, coatings and industrial degreasing applications, with a bioethanol-to-ethyl-acetate catalysis platform that eliminates the fossil-feedstock dependency of conventional ethyl acetate production; the company was acquired by Shrieve Chemical Company, integrating its biosolvent portfolio into Shrieve’s broader specialty chemicals platform.
• EPA VOC framework: bio-derived solvents marketed in the US fall under EPA’s VOC-exempt and hazardous-air-pollutant frameworks, with Vertec’s MEK-replacement positioning directly aligned to the EPA VOC-exempt solvent list (alongside TBAc, acetone, and other compounds that bypass the federal VOC emission controls that govern conventional MEK, toluene and xylene).

03CN

No Chinese company cleared source confirmation as a dedicated biosolvent commercial originator as of 2026; the dedicated biosolvent-producer space remains concentrated in the EU (Corbion, Galactic, BASF) and the US (Vertec). Chinese industrial-biotechnology reporting in this period emphasises fermentation-derived long-chain dicarboxylic acids, lactic acid and bio-based polyamide (Cathay Biotech’s Taijin project) rather than a dedicated Chinese-branded biosolvent product line.

research gap, MIIT/NDRC industrial-chemical pathway

• Research gap: Chinese lactic acid producers (Henan Jindan, Musashino) supply upstream fermentation feedstock for ethyl lactate but no Chinese-branded Galasolv-equivalent commercial biosolvent line was confirmed in 2026 sourcing.
• Regulatory pathway: to the extent a Chinese-branded biosolvent product reached the market, industrial chemical registration would run through standard MIIT/NDRC industrial-chemical channels alongside VOC emission controls under GB 37824-2019 and related national standards, rather than a dedicated biotech pathway.

04EU

Europe anchors the dedicated biosolvent market with three commercial producers — Corbion (Netherlands, Biviture brand), Galactic (Belgium, Galactic bio-solvents line) and BASF (Germany, BMBcert biomass-balanced intermediates) — collectively serving coatings, pharmaceutical processing and specialty industrial solvent markets under the REACH and EU Industrial Emissions Directive frameworks.

Corbion, Galactic, BASF, REACH

• Corbion (Amsterdam, Netherlands): markets high-purity ethyl L-lactate under its Biviture brand as a green solvent across ten key industries, sourced from sugarcane-fermented lactic acid; the Biviture brand sits alongside Corbion’s broader lactic acid / lactates and TotalEnergies Corbion PLA bioplastics businesses (Luminy grades).
• Galactic (Brussels, Belgium): sells its Galactic bio-solvents line (Galasolv) alongside the company’s broader lactic acid and food-grade lactates portfolio, distributed via the ChemPoint and Comindex (IMPAG Group) networks across European industrial coatings and cleaning customers.
• BASF (Ludwigshafen, Germany): operates a biomass-balanced attribution route through its BMBcert intermediates portfolio — expanded in July 2026 with three new REDcert2-certified additives for architectural coatings (Dispex AA 4145 MB, Rheovis PU 1333 MB, Rheovis HS 1169 MB), plus a biomass balance polyether polyol product portfolio — allocating renewable carbon from biomass feedstocks into existing solvent, intermediate and polyol families within the Verbund.
• REACH & IED framework: bio-derived solvents manufactured or placed on the EU market fall under REACH chemical registration, evaluation and authorisation (the same regime as their fossil-derived counterparts), with the EU Industrial Emissions Directive 2010/75/EU VOC emission caps providing the downstream demand driver that pulls bio-derived solvents into coatings and industrial applications.

05Leading companies and research institutes

06Tech stack and innovations

The stack spans two distinct bio-derived solvent value chains: direct ester-solvent production from fermentation-derived lactic acid and bioethanol, and biomass-balanced attribution of renewable carbon into existing solvent families.

1. Lactic-acid esterification (Lactic Acid Esterification Solvents):
   • Corbion’s Biviture brand markets high-purity ethyl L-lactate from sugarcane-fermented lactic acid as a green solvent across ten key industries; Galactic’s bio-solvents line and Vertec’s corn-derived products share the same acid-catalysed esterification of fermentation-derived L-lactic acid with ethanol to produce ethyl lactate, the dominant bio-derived drop-in solvent chemistry.
2. Bioethanol-to-ethyl-acetate catalysis (Bioethanol-to-Ethyl-Acetate Catalysis):
   • Vertec Biosolvents’ catalytic conversion of bioethanol to ethyl acetate removes the fossil-feedstock dependency of conventional ethyl acetate production (which is normally produced from ethylene via the Wacker process), positioning bio-derived ethyl acetate as a drop-in for paints, coatings and pharmaceutical processing solvent markets.
3. Biomass-balanced attribution (Biomass-Balanced Solvent Attribution):
   • BASF’s BMBcert intermediates portfolio allocates renewable carbon from biomass feedstocks into existing solvent, intermediate and polyol families via mass-balance accounting within the integrated Ludwigshafen Verbund, certified under ISCC PLUS, REDcert2 and (since November 2025) ISCC EU schemes — a parallel commercial route that does not require dedicated bio-derived solvent molecules.
4. VOC-exempt and substitution-grade formulations (VOC-Exempt Biosolvent Formulation):
   • Vertec’s MEK-replacement positioning, Corbion’s high-purity ethyl L-lactate for pharma and electronics cleaning, and Galactic’s Galasolv line all compete to displace regulated petrochemical solvents (MEK, toluene, xylene, methylene chloride) under the EPA VOC-exempt framework in the US and the EU Industrial Emissions Directive VOC caps in Europe.

07Value chains and production pipelines

Industrial pipeline of biosolvents & green solvents (REACH / EPA VOC)

┌───────────────────────────┐      ┌───────────────────────────┐
│ 1. Feedstock sourcing     │ ───> │ 2. Fermentation /         │
│    (sugars, bioethanol,   │      │    mass-balance           │
│    biomass residues)      │      │    attribution             │
└───────────────────────────┘      └───────────────────────────┘
                                                   │
                                                   ▼
┌───────────────────────────┐      ┌───────────────────────────┐
│ 4. Purification           │ <─── │ 3. Esterification /       │
│                             │      │    catalytic conversion   │
└───────────────────────────┘      └───────────────────────────┘
              │
              ▼
┌───────────────────────────┐      ┌───────────────────────────┐
│ 5. Formulation & blending │ ───> │ 6. End-use application    │
│    (BMBcert / Galasolv)   │      │    (coatings, degreasing) │
└───────────────────────────┘      └───────────────────────────┘

Stage 1: Feedstock sourcing

Sugarcane juice (Corbion’s Biviture supply), corn starch (Vertec’s supply), bioethanol, or biomass residues / waste cooking oil for mass-balance attribution (BASF BMBcert) are sourced as the renewable carbon feedstock, replacing the fossil naphtha / ethylene / propylene that feeds conventional solvent production.

Stage 2: Fermentation / mass-balance attribution

Microbial fermentation of sugars to L-lactic acid (Corbion, Galactic, Vertec via their lactic acid suppliers) or to bioethanol (Vertec’s bioethanol-to-ethyl-acetate route); alternatively, biomass-derived feedstocks are co-fed into the integrated Verbund stream at BASF and attributed to downstream solvent and intermediate products via mass-balance accounting.

Stage 3: Esterification / catalytic conversion

Lactic acid is acid-catalysed esterified with ethanol to produce ethyl lactate (Corbion’s Biviture, Galactic’s Galasolv, Vertec’s corn-derived products); alternatively, bioethanol is catalytically dehydrogenated and oxidised to ethyl acetate (Vertec’s bioethanol-to-ethyl-acetate platform).

Stage 4: Purification

Crude ester solvent is purified to high-purity specification — Corbion’s high-purity ethyl L-lactate grade is the reference standard for pharma, electronics cleaning and high-end coatings applications where trace impurities would compromise downstream chemistry.

Stage 5: Formulation & blending

Purified bio-derived solvent is blended into finished commercial solvent formulations — Galactic’s Galasolv line via ChemPoint and Comindex distribution, Vertec’s MEK-replacement products under Shrieve Chemical Company, and BASF’s BMBcert-certified additive grades (Dispex AA 4145 MB, Rheovis PU 1333 MB, Rheovis HS 1169 MB launched July 2026) under ISCC PLUS / REDcert2 mass-balance certification.

Stage 6: End-use application

Bio-derived solvents replace MEK, toluene, xylene and methylene chloride in paints and architectural coatings, industrial degreasing, electronics cleaning, adhesives, and pharmaceutical processing — driven by REACH authorisation pressure on hazardous solvents and the EU Industrial Emissions Directive VOC emission caps that govern conventional solvent use.