HS Code 2522 — Quicklime, Slaked Lime and Hydraulic Lime

This code covers non-chemical lime products used primarily in construction and agriculture for mortar, plaster, and soil stabilisation. It includes quicklime (calcium oxide), slaked lime (calcium hydroxide), and hydraulic lime which sets underwater.

What's included

Calcium oxide (commercial)
Hydraulic lime (chaux hydraulique)
Slaked lime (calcium hydroxide powder)

What's excluded

Pure calcium oxide → use 2825 (Chemically pure compounds are classified in Chapter 28.)
Limestone flux → use 2521 (This is raw crushed limestone before thermal processing.)

Common examples

Lump quicklime for steel manufacturing
Hydrated lime for masonry mortar
Agricultural lime for soil pH adjustment
Natural hydraulic lime NHL 3.5

Frequently asked questions

What is the difference between HS 2522 and HS 2825?

HS 2522 covers commercial-grade lime used in building and farming, whereas HS 2825 is reserved for chemically pure calcium oxide and hydroxide used in laboratories or specific chemical synthesis.

Trade & shipping notes

Typical duty range: 0% - 5%
Documentation: Material Safety Data Sheets (MSDS) are mandatory due to the corrosive nature of quicklime.
Typical shipping mode: Bulk
Top exporters: France, Germany, Belgium, Vietnam
Top importers: Netherlands, United Arab Emirates, India, Finland

Key takeaway

HS 2522 is for industrial and construction lime; purity levels dictate if it moves to Chapter 28.

Quicklime, Slaked Lime and Hydraulic Lime