What Counts as Manufacture of Chemicals and Chemical Products in Rev. 5?

In ISIC Rev. 5, published by the UN Statistics Division, chemical manufacturing covers basic chemicals, fertilisers, pesticides, paints, soaps, and many other chemical products. It includes producing industrial gases, dyes, plastics in primary forms, and pharmaceutical ingredients only where those sit in chemical headings rather than pharmaceutical headings. The defining feature is chemical transformation, not merely mixing or packing.

What makes a process chemical manufacturing rather than mixing or packing?

The defining feature is chemical transformation, not merely mixing or packing. A plant that reacts inputs to create a new chemical substance is doing chemical manufacturing, even if the finished product looks like a simple liquid or powder. A plant that only blends finished chemicals without changing them chemically, or only packs them into containers, is doing different work, and that difference is the first test to apply in ISIC Rev. 5, published by the UN Statistics Division. The question is whether a reaction has created something new, not whether the plant handles chemicals.

Basic chemical production illustrates the point clearly. It creates acids, alkalis, gases, and organic chemicals used across industry, through processes that change the inputs at a chemical level. Those basic chemicals then become inputs for other makers. Chemical product making turns basic chemicals into paints, detergents, fertilisers, and similar finished products, again through formulation and reaction steps that produce a new product with its own properties.

Where do plastics in primary forms and pharmaceutical ingredients sit?

Plastics in primary forms, such as pellets and resins, sit with chemicals, while shaped plastic goods sit with rubber and plastics products. The reason is the stage of production: pellets and resins are the raw plastic material, produced by chemical processes, whereas a moulded bottle or pipe is a shaped good made from that material. A reader who groups all plastic work together will merge two stages that Rev. 5 keeps apart, and the pellet stage belongs here because its work is chemical production, not shaping.

Pharmaceutical ingredients follow a similar logic, but with a warning attached. They sit in chemical headings only where those headings place them, rather than in pharmaceutical headings, and the distinction depends on the full UNSD description for the ingredient in question. This guide cannot settle that placement for a specific ingredient. It can only point to the test: describe the chemical work, find the description that matches it, and check whether that description sits in the chemical area or the pharmaceutical area. Guessing from the word pharmaceutical alone is not a reliable route.

What mistakes are most likely with chemical headings?

Chemical safety, licensing, and environmental law are national matters outside this guide. The ISIC heading describes production only. A plant may be licensed, inspected, and fully compliant, yet still be described incorrectly in statistical terms, and a plant described correctly in statistical terms still needs to meet its legal duties. Keeping production description separate from legal permission prevents one kind of compliance from being mistaken for the other, and it keeps the statistical heading focused on what the plant makes and how it makes it.

Another likely mistake is stopping at a short heading title. Chemical headings cover a wide range: basic chemicals, fertilisers, pesticides, paints, soaps, industrial gases, dyes, and many other products. Titles alone cannot carry that range, and the fuller description carries the inclusions and exclusions that decide borderline cases. When the exact heading is uncertain, narrow slowly through the UNSD detail from section to division to group to class, checking the description at each level, and consult national guidance, which often explains how international headings are applied locally.

Why keep this guide short when the chemical range is so wide?

A short guide cannot replace the UNSD structure, and this guide does not try to do so. ISIC Rev. 5, published by the UN Statistics Division, gives manufacture of chemicals and chemical products 22 sections from A to V, 87 divisions, 258 groups, and 463 classes, endorsed by the UN Statistical Commission in March 2023. With a structure that large, this guide on manufacture of chemicals and chemical products stays at the level of ideas, boundaries, and examples. It explains chemical transformation, separates basic chemicals from finished chemical products, and marks the plastics and pharmaceutical boundaries, while the UNSD detail provides the exact wording for a specific heading.

That division of labour keeps the guide readable without pretending to be the classification itself. Readers who need an exact heading should work through the UNSD descriptions rather than relying on a familiar product name such as paint or detergent, because similar names can hide different production work. For a business register entry, the register itself is the final check, and a heading copied from a similar business without that comparison is a weak basis for a formal record.

This guide explains chemical manufacturing in general statistical terms only. It does not determine any reader’s code, principal activity, or registration, and it does not speak to safety, licensing, or environmental permission. For a formal answer, compare the chemical transformation with the UNSD Rev. 5 descriptions and confirm the entry with the national statistical institute or business register that holds the record.