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.