Sales Manager, Water Treatment

Job Summary:

​What We're Looking For

Experience

• 8–12 years of experience in B2B chemical sales, business development, or key account management.

• We are open to hiring at either the Assistant Sales Manager or Sales Manager level, depending on your experience and capabilities.

In this role, you will be responsible for driving profitable sales growth by managing strategic customer accounts, developing new business opportunities, and expanding our presence across the Electronics, PCB, Semiconductor, Water Treatment and Industrial Utilities markets.

You will collaborate closely with customers, suppliers, and cross-functional teams to deliver innovative chemical solutions and create long-term value.

Key Responsibilities

• Develop and grow strategic customer accounts while identifying new business opportunities to achieve sales and gross profit targets.

• Build and maintain long-term relationships with key customers, suppliers, and principals.

• Drive cross-selling opportunities across Industrial & Specialty Chemicals, Water Treatment, Electronics, PCB, Semiconductor, Food & Beverage, and Industrial Utility sectors.

• Identify customer requirements and recommend value-added chemical solutions that support their manufacturing processes.

• Manage the full sales cycle, including customer visits, quotations, RFQs, technical discussions, commercial negotiations, product trials, and project follow-up.

• Develop and execute account plans to increase customer penetration, improve retention, and expand project pipelines.

• Work closely with Product Management, Supply Chain, Regulatory Affairs, Logistics, and Operations to ensure seamless customer support and on-time delivery.

• Maintain an accurate sales pipeline, CRM records, forecasts, and market intelligence.

• Monitor market trends, competitor activities, and emerging business opportunities to support sustainable business growth.

• Ensure compliance with company policies, safety standards, and regulatory requirements

Travel

• Willingness to travel 60–80% within Thailand for customer meetings, plant visits, supplier engagements, project follow-ups, and business development activities.

​Stakeholder Management

• Excellent relationship-building and communication skills.

• Ability to collaborate effectively with cross-functional teams, suppliers, and key customers.

• Previous experience coaching or leading sales team members is an advantage.

​Market Knowledge

• Strong knowledge of the Thailand industrial market is essential.

• Experience covering the Eastern Seaboard, Central Thailand, or nationwide industrial customers is highly preferred.

• Exposure to Southeast Asian markets will be considered an advantage.

​Commercial Expertise

• Proven experience managing strategic customer accounts and developing new business.

• Strong track record in commercial negotiations, account development, and project pipeline management.

• Experience building strong supplier and principal relationships.

• Ability to identify and maximize cross-selling opportunities across multiple product portfolios.

​Experience selling products such as:

• Industrial & Specialty Chemicals

• Acids & Alkalis

• Solvents

• Process Chemicals

• Water Treatment Chemicals

• RO Membranes

• Ion Exchange Resins

• Specialty Additives

​​Industry & Product Experience

Experience in one or more of the following industries is highly preferred:

• Semiconductor

• Water Treatment

• Industrial Utilities

• Food & Beverage

• Specialty Chemicals

• Industrial Chemicals

• Electronics Manufacturing

• PCB

Brenntag provides equal employment opportunities to qualified applicants and employees of all backgrounds and identities to create a workplace where difference is valued because it forms a resilient and more innovative organization. We do not discriminate on the basis of age, disability, gender identity, sexual orientation, ethnicity, race, religion or belief, parental and family status, or any other protected characteristic. We welcome applications from women, men and non-binary candidates of all ethnicities and socio-economic backgrounds.

Brenntag TA Team