How to become a Marine Products Refiner
Official Chinese title (2022 occupational classification): 水产制品精制工
Also called: Fish Oil Refiner, Marine Protein Refiner, Chitosan Refiner, Seaweed Iodine Maker, Seaweed Alcohol Maker, Seaweed Gum Extractor, Seaweed Feed and Fertiliser Maker
Operates reaction, evaporation, drying and grinding equipment to extract fish oil, fish protein, seaweed gums and other biological products from seafood.
Main tasks
- Soaking, washing and chopping raw materials
- Digesting raw materials to get a digest
- Separating and purifying the digest
- Concentrating, pressing, dewatering and drying material
- Grinding, blending, sterilising and packing
- Cleaning and disinfecting work areas and equipment
Pay · AI and this job
- Median pay in China: CN¥54,000 a year (2025).
- Middle half: CN¥43,000 to CN¥69,400. One in ten earn less than CN¥33,600 and one in ten more than CN¥86,600.
- This is the figure for the mid group Agricultural Products Processing Workers, not for this job alone.
- National figure: wage prices of enterprise employees from the Ministry of Human Resources and Social Security (MOHRSS) enterprise pay survey. The public sector and the self-employed are not covered.
- Guangzhou only: median CN¥61,200 a year (2025), middle half CN¥44,600 to CN¥84,337.
- This is the figure for the mid group Agricultural Products Processing Workers, not for this job alone.
- Generative AI can do relatively little of this work, by the ILO's global estimate.
Who does this work
- The census group Agricultural Products Processing Workers holds 0.39% of everyone employed in China; 45.2% of its workers are women (2020 Census).
- 21.2% are under 35, 56.7% are 35 to 54 and 22.1% are 55 or older. The middle age band is 45 to 49.
- Census figures for the whole mid group (2020 long-form sample), not for this job alone.
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Questions people ask
How much does a Marine Products Refiner earn in China?
Across China, the median pay of enterprise employees is CN¥54,000 a year (Ministry of Human Resources and Social Security (MOHRSS), 2025). The public sector and the self-employed are not covered. It is the figure for the mid group Agricultural Products Processing Workers. In Guangzhou alone it is CN¥61,200 a year (2025).
Will AI change the work of a Marine Products Refiner?
Generative AI can do relatively little of this work, by the ILO's global estimate.
Sources
- Ministry of Human Resources and Social Security (MOHRSS): 2025 enterprise pay survey information: wage prices of enterprise employees by occupation mid group, and digital occupations (P10 to P90 annual CNY) (2025 (published 2026-07-08)), retrieved 5 October 2026
- Guangzhou Human Resources and Social Security Bureau: Guangzhou 2025 labour market wage prices (P10 to P90 annual CNY by occupation) (2025 (enterprise pay survey)), retrieved 4 October 2026
- National Bureau of Statistics of China: China Population Census Yearbook 2020, long-form tables 4-6 and 4-7 (employed by occupation mid group, sex, age) (2020 Census long form (10% sample)), retrieved 4 October 2026
- International Labour Organization, Generative AI and Jobs: A Refined Global Index of Occupational Exposure (ILO Working Paper 140, Gmyrek et al.) (ILO Working Paper 140, May 2025, Annex Table A1), CC BY 4.0, retrieved 4 October 2026
Sources: Occupational Classification of the People's Republic of China (2022 edition, public consultation draft), Ministry of Human Resources and Social Security, State Administration for Market Regulation and National Bureau of Statistics; Ministry of Human Resources and Social Security, 2025 enterprise pay survey information; Guangzhou Human Resources and Social Security Bureau, 2025 labour market wage prices; National Bureau of Statistics of China (www.stats.gov.cn), 2020 Population Census yearbook; Ministry of Education, vocational education major profiles (2022 revision) and undergraduate major catalogue (2025); Ministry of Human Resources and Social Security, national vocational qualifications catalogue (2021); O*NET interest scores (CC BY 4.0); ILO global generative AI exposure index (CC BY 4.0). Figures processed by Peernovo. English text, translations and the matching of occupations to ISCO-08, majors, degree fields and qualifications by Peernovo.
Descriptions and tasks are Peernovo's own words, written from the facts in the Occupational Classification of the People's Republic of China (2022 edition). Job titles and work types are the classification's own.
Updated 5 October 2026