About us

A Message from Our Leadership

Joachim Roettle

Alex Pose

As the new leadership team, we are excited to be part of the INCOA Performance Minerals team and help place INCOA as a top mineral supplier in the market. 

We believe the ideal foundation for success begins with shared values and purpose among all business stakeholders.

Shared Values:

INCOA is built around the key values of quality, innovation, customer service, and sustainability.  These values mirror our own. With over 60 years of combined experience in the industrial minerals industry, we recognize the importance of keeping these at the forefront of our everyday operations. 

INCOA and her sister company, Belfond Enterprise, perform their activities in a respectful, sustainable way.  By employing the newest technologies and front-end loading planning, we optimize the usage of our resources to minimize the impact on neighboring communities and the environment.  

Quality Raw Material:

Our process starts with a secure supply of high-quality raw material from our sister company.  This limestone is uniquely pure and consistent making it a reliable supply – for more than the next 200 years – of one of the world’s most used industrial minerals. 


Besides our extraordinary raw material, the knowledge and experience of our teams are core reasons why INCOA’s products are innovative and unique. Our teams combine expertise in technical applications, quality, processing, machine design, optimization and controls, logistics, sales, marketing, and customer service.


We bring experts from the industrial minerals segment and other industries together and empower them to innovate the products, processes, and systems that make us who we are.  At INCOA, our business approach is grounded in the drive toward continual improvement and in crafting creative solutions to market needs. As a result, we can offer new, specially designed products with improved performance to the market.  

Markets and products are constantly evolving, and INCOA is ready to help you to be ahead of these trends.

Let’s create an innovative and sustainable future together!


Joachim Roettle, CEO

Alex Pose, VP Sales & President Belfond


A calculated value that describes the breadth of the particle size distribution by looking at the size of the particle below which 90% of all particles are found (d90), the median and the size of the particle below which 10% of all particles are found (d10).

The Span is calculated from the following equation:

d90 = particle size below which 90 % of the particles are described
d10 = particle size below which 10% of the particles are described
d50 = particle size below which 50% of the particles are described, also known as the median

Broader distributions have a larger span while narrower distributions have a smaller span.

Level of Ultrafines

The percentage of the total distribution that includes particles that are 0.5 microns or smaller.

Some demanding applications require careful control of the level of very small particles. These particles can make the powder difficult to disperse and can actually absorb important components of formulations ultimately altering end-use performance.


The size below which 100% of the particles can be found.

Unlike most ground calcium carbonate suppliers, INCOA specifies at the 100% passing rather than the industry standards of 95% or 98% passing. We recognize that even very low levels of oversize particles can interfere with the performance of our products in your applications


The size below which 50% of the particles can be found.

This is the most common means of describing the size of ground calcium carbonate powders. INCOA describes our medians on the final product as-received by our customers. This means that the specification testing is performed on samples of the shipment before shipment on the final product not on material still in-process.