Sales Manager
Maastricht Op De Bos Office
At Sibelco, we advance life through materials.
For over 150 years, we’ve been a trusted leader in sourcing, transforming, and distributing specialty industrial minerals. Our work powers progress across industries as diverse as glass, ceramics, construction, coatings, polymers, and water purification. Beyond our materials, we’re proud of our commitment to sustainability, innovation, and empowering people from all walks of life to thrive and make a meaningful impact.
Are We the Perfect Match?
At Sibelco, we believe building a successful career is a two-way journey. We’re looking for individuals who share our values and vision, just as much as you’re seeking a company that aligns with your aspirations. Together, we can shape the future.
Job Purpose:
The Sales Manager will be responsible to achieve maximum profitable growth and sales objectives (volume, Net Sales and Gross Margin) in line with Sibelco’s vision, strategic objectives and policies in the geographic sub-regional area assigned. The Sales Manager is fully responsible for the sales of Sibelco group products, coming from plants across the globe, within his/her geographic sub-region. The Sales Manager is responsible to identify new sales opportunities, commercialize new products and develop sales into new applications in cooperation with the Technical Sales Manager. The Sales Manager understands the market and key players active in the sub-region and builds the necessary market intelligence to retain and extend the Customer portfolio.
Customer and Key Account Management:
Regular visit to customers in the area of responsibility.
grow wallet share
including internal coordination with sales managers in other sub-regions
Pricing:
Set prices and payment terms in line with Sibelco’s pricing and payment
structures for the region and application.
modifications where needed. Negotiate price increases as targeted in
budget.
required prices settings are out of line prior to committing to customer.
Negotiate (multi-year) contracts.
situation in order to offer/set the right payment terms in line with credit
risk policies. Follow up on customer payments and minimize overdues
when escalated by Credit Managers.
Sales Strategy:
Formulate and implement sales tactics including price, product and
distribution channels to develop new and existing markets
fairs / exhibitions as a visitor). Market understanding includes
customer needs, competitors, trends, impact of local legislation etc.
samples, offers, sales.
payment terms).
markets, develop and maintain best distribution channel.
with customers and prospects. Call on technical support if/where
appropriate.
execute specific product sales strategies
for new developments.
to get the highest value out of it.
with the Marketing Manager / Commercial VP
of the markets.
Realize growth:
dedicated commercial efforts (in coordination with Technical sales
and Marketing).
applications and sub-regions
Support E2E supply chain:
Provide operations and supply chain with on time information to schedule
the activities for the short/medium/long term period
make sure mass balance and other critical local issues are considered in
business growth projects (Sales and Production meetings).
plant mass balance and plant gross margin
Safeguard competitiveness:
Mapping competition and identifying their strengths and weaknesses.
Competencies:
Business Acumen:
adds value to Sibelco
Sibelco Senior leadership’s attention
Decision Making:
makes timely recommendations and decisions based on accurate and reliable
analysis
Planning & Prioritizing:
resources
activities)
Drives Result:
achieve set goals • Recognised for his/her qualitative performance
Communicates Effectively:
different audiences
and adapts style
Managing Change & Ambiguity:
effectively guiding others through them
usual
information
Practical understanding of industrial mineral industry
Understand basic finance principles
Strong business acumen
Broad breadth and depth knowledge of Sibelco processes, products and
markets
Open minded
Team player
Pro-active
Able to work independently
Diplomatic
Self-motivated
Permanent
Why Join Us?
Sibelco is more than a workplace—it’s a community that encourages growth, innovation, and collaboration. Here’s what you can look forward to when you join our team:
We also welcome applications from all backgrounds and are committed to providing reasonable adjustments to support you through the selection process.
Follow us on LinkedIn, Instagram, Twitter/X and Facebook to learn more about life at Sibelco. Submit your application in the Apply option.
Please note: We do not require agency services as we have a dedicated Global Talent Acquisition Team.

Material Solutions Advancing Life
Sibelco is a global material solutions company that sources, transforms, and distributes specialty industrial minerals — particularly silica, clays, feldspathics, and olivine. We are also leaders in glass recycling. Operating in over 30 countries, we serve diverse industries such as glass, ceramics, construction, coatings, polymers, and water purification, delivering materials that power progress in modern life, from solar technology to smartphone screens.
Founded in 1872, Sibelco has grown into a multinational business with a broad portfolio of high-specification minerals and a commitment to dedicated technical support. We strive for innovation, sustainability, and excellence, offering solutions that meet and anticipate the needs of our customers.
At Sibelco, we are committed to sustainability, biodiversity, and the health, safety, and well-being of our employees. We foster a culture of diversity and inclusion, ensuring that all colleagues feel valued and supported.
As a great place to work, we provide competitive pay, well-being support, and opportunities for growth and development. Our vision is to deliver long-term social, environmental, and economic value, guided by our purpose: Material solutions advancing life.
#WeAreSibelco