About us

Nasaco International Ltd. produces and markets chemicals for froth flotation of minerals.

Custom Formulations

Custom Formulations

We develop, together with mining companies, chemical formulations that are specific to individual operations. We concentrate on providing solutions to metallurgical problems by developing formulations of frothers, mineral collectors and depressants.

Logistics Partner

Logistics Partner

Nasaco operates a fleet of forty ISO tank containers. We also deliver our products in flexi-tanks or, for non-bulk users, in 1000 l IBC containers or in standard drums of 200 l. Powder products are supplied in either 25 kg sacks, big bags or in exceptional cases in bulk.

Global Presence

Global Presence

Our company is based in Switzerland, and we have subsidiary and associate companies situated in Southern Africa, Mexico and Chile, as well as representative offices in Germany, the US, the Philippines and Australia.

Products & Services

Nasaco offers a wide range of products and services for your mineral processing needs.


The NASFROTH™ range of alcohol and glycol frothers includes formulations and blends which give application specific products. These are often developed together with our customers. To extend this range, Nasaco is the exclusive distributor of Dowfroth products for Dow Chemical company in the EMEA area.


The NASMIN depressant range is used in the depression of gangue minerals and the control of silicates in the flotation process and are critical to good metallurgical performance. NASMIN depressants are extensively used in the depression of Pyrite and Pyrrhotite as well as for the control of silica and talc minerals.


In most mineral processes where there is a need for sedimentation, filtration or centrifugation then a flocculant or coagulant is often desired. The NASFLOC range offers a broad spectrum of products ensuring maximum performance and cost efficiency in these applications.


Nasaco has a wide range of collectors for all types of flotation. Our expertise in custom formulation has allowed significant improvements in metallurgy to be made by many of our customers when NASCOL formulations are used.


A modifier acts on the mineral surface to either activate the surface and thereby promote flotation or to deactivate the surface to make the mineral non-flotable. Nasaco supplies modifiers made from the purest raw materials which give a superior economic advantage.

Laboratory Services

Nasaco operates a mineral processing laboratory through its Betachem partner in South Africa. The aim of the laboratory is to support the design, development and production of mining chemicals for the group.

We provide mineral processing solutions

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Detailing our research and case studies

Removing Gangue Minerals

A-SEM data is now regularly used to identify the gangue minerals in flotation concentrates and can be used to focus efforts on their removal. Here, we will discuss how the process can be used to reduce gangue minerals in concentrate streams.

Operational Mineralogy – A solution to Flotation Problems?

The Question: “What has changed in the ore?” is seldom asked, because no-one has the data to give the answer.

Solutions for Flotation

We are a world leader in the formulation of frother and flotation products

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    Nasaco International Ltd