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Where PHA Manufacturing in India Still Depends on Imported Inputs

India already has the sugar. The struggle lies in between sugar and a sealable resin.

PHA, or polyhydroxyalkanoate, is produced by certain bacteria inside their own cells as an energy reserve. Feed them plain sugar and you get PHB which is stiff, brittle and difficult to process. Feed them propionic acid or valeric acid alongside that sugar and you get PHBV which is flexible enough to become a film, a straw, or a coating. Limit their nitrogen and you get PHA.

These precursors are the most interesting lines on the invoice. Reviews of PHBV economics keep returning to same facts that propionate and valerate are expensive and they turn toxic to the culture above approx. 2 to 3 grams per litre.

Carbon feedstock accounts for somewhere between 20 and 45 percent of total PHA production cost.

The Bottleneck Lies in Downstream

Most difficult conversations about Indian bioplastics begins after fermentation ends.

Extracting PHA out of a bacterium means eliminating everything in the cell that is not polymer by using solvents such as chloroform or dimethyl carbonate, or hypochlorite and hydroxide digestion; followed by centrifuging, washing and drying. Researchers working on this describe downstream processing as the largest single cost factor in PHA production and also one of the least investigated stages of the whole chain.

India can definitely build the tanks. Fabricators in Pune and Ahmedabad supply fermenters from ten litres to a hundred thousand. India’s fermentation chemical market reached roughly USD 3.2 billion in 2025, yet the country remains heavily reliant on imports for fermentation-based APIs, intermediates and key materials. When high-purity media components, specifically enzymes and single-use consumables are sourced abroad, an Indian-built fermenter does not make the process Indian.

Under the Plastic Wate Management Rules, a compostable product cannot legally be sold in India without a certificate from the Central Pollution Control Board. That certificate rests on IS/ISO 17088 testing carried out at CIPET or another recognised laboratory. To get this approval, the product must undergo a mandatory 180-day test and the evaluation checks that the material fully breaks down through aerobic biodegradation and confirms that the resulting compost is safe, heavy-metal-free, and suitable for seed germination.

Every new Indian PHA grade or major reformulation faces a mandatory six-month delay before gaining sales approval. While provisional certificates provide temporary relief, their eventual expiration leaves local producers vulnerable. In contrast, established international competitors can enter the Indian market immediately without delay because their compliance certification is already complete.

Nothing here passes through customs. It behaves like an import anyway as a proof of performance is easier to buy from abroad than to generate from home.

Analysis of the Indian bioplastics market describes the demand-supply gap in advanced biopolymers such as PLA, PHA and PBAT as almost entirely filled by imports, with an import substitution opportunity running into the hundreds of million of dollars.

On 24 Auguist 2024, the Union Cabinet approved the BioE3 Policy. Its most practical contribution is shared infrastructure like hubs and biofoundries where a young company can rent time on a large fermenter instead of buying one. The first call drew 253 proposals. Shared fermenters solve the capital problem but they do not solve the precursor, extraction solvent or a certification issue.

Where TerraPHA Fits

TerraPHA Biotech is the World’s first non-GMO biopolymer company, using naturally occurring microbial systems, paired with precision-controlled fermentation conditions designed specifically to support consistency and scalability.

Just as importantly, TerraPHA’s technology is built to run on a wide range of renewable carbon sources rather than one fixed substrate as feedstock flexibility is the substantial part. Thereby, directly addressing the cost bottleneck that research repeatedly flagged as the deciding factor in commercial viability.

Frequently Asked Question

Is PHA actually manufactured in India, or only imported?

The answer to this question is both. Domestic production exists and is expanding under the BioE3 Policy, but market analysis finds the demand-supply gap for advanced biopolymers including PHA is still met almost entirely by imports.

India grows enormous quantities of sugarcane then why is PHA still expensive here?

Feedstock cost is about 20-45 percent only. The rest of the cost lies in the precursor acids, extraction solvents, purification, drying and certification. Globally, PHA production has been estimated at roughly USD 4 to 6 per kilogram against USD 1 to 2 for petrochemical plastics.

What certifications does a PHA-based product need before it can be sold in India?

A certificate from the Central Pollution Control Board under the Plastic Waste Management Rules, supported by IS/ISO 17088 tests reports from CIPET or another recognized laboratory. The complete test runs 180 days, and certified products must carry compostability labelling and a OR code.

Does using non-GMO microorganism make any difference to import dependence?

It removes one layer of additional regulatory approval pathway. Many companies procure license from abroad. A naturally occurring strain that a company can maintain in-house is one fewer critical input arriving from outside the country.

References

BioSpectrum India. (2026, July 1). Pharma fermentation: India’s next biomanufacturing opportunity. https://www.biospectrumindia.com/features/73/28016/pharma-fermentation-indias-next-biomanufacturing-opportunity.html

Central Pollution Control Board. (n.d.). Standard operating procedure (SOP) for issuing certificate to manufacturers/sellers of compostable plastic carry bags and products. Ministry of Environment, Forest and Climate Change, Government of India. https://cpcb.nic.in/uploads/plasticwaste/SOP-IssueCert-CompostablePlasticManufacturers.pdf

Department of Biotechnology. (n.d.). BioE3 policy: Biofoundries and biomanufacturing hubs. Biomanufacturing Institute, Government of India. https://bmi.dbt.gov.in/bio-hubs.php

NIIR Project Consultancy Services. (2026). Indian bioplastics market 2026-2033: MSME opportunities. https://www.niir.org/blog/indian-bioplastics-market/

Polyhydroxyalkanoates production from laboratory to industrial scale: A review. (2025). International Journal of Biological Macromolecules. https://www.sciencedirect.com/science/article/pii/S0141813025038073

Polyhydroxyalkanoates (PHAs): Key challenges in production and sustainable strategies for cost reduction within a circular economy framework. (2025). Results in Engineering. https://www.sciencedirect.com/science/article/pii/S259012302501415X

Prime Minister’s Office. (2024, August 24). Cabinet approves BioE3 (Biotechnology for Economy, Environment and Employment) Policy for fostering high performance biomanufacturing. Government of India. https://www.pmindia.gov.in/en/news_updates/cabinet-approves-bioe3-biotechnology-for-economy-environment-and-employment-policy-for-fostering-high-performance-biomanufacturing/

Rodrigues, A. M., Franca, R. D. G., Dionisio, M., Sevrin, C., Grandfils, C., Reis, M. A. M., & Lourenco, N. D. (2022). Polyhydroxyalkanoates from a mixed microbial culture: Extraction optimization and polymer characterization. Polymers, 14(11), 2155. https://doi.org/10.3390/polym14112155

A critical review on the economically feasible and sustainable poly(3-hydroxybutyrate-co-3-hydroxyvalerate) production from alkyl alcohols. (2022). Polymers, 14(4), 670. https://doi.org/10.3390/polym14040670

Takshashila Institution. (2025, December 16). Bio-plastics: A biomanufacturing opportunity for India. https://takshashila.org.in/content/publications/20251216-Bio-Plastics-Biomanufacturing-Opportunity-for-India.html

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