Buyer Senior Buyer

**Company:** Mitsubishi Chemical Methacrylates Singapore Pte. Ltd. **Job Description:** **Job Purpose** This role manages direct raw material and utility availability, partnering with Production and Sales to align supply with demand while optimising cost, inventory, risk and commercial control. **Key Accountabilities** 1\. Strategic Sourcing & Procurement * Oversee the purchasing of raw materials, chemicals and related services to ensure uninterrupted plant operations. * Source, evaluate and negotiate with suppliers to optimise cost, quality, delivery reliability and HSSE performance. * Manage the PR/PO lifecycle in SAP B1 / S/4HANA), ensuring data accuracy and process efficiency. 2\. Production Planning & Inventory Optimization * Partner with Production and Sales to align raw material availabilities with agreed production volumes and demand plans. * Optimise inventory using planning tools such as safety stock modelling, reorder points and JIT to balance supply reliability, working capital and cash flow. * Monitor inventory positions and proactively mitigate risks of shortages, excess or obsolescence. 3\. Invoice Verification & Commercial Control * Verify invoices against contracts, delivery documents, goods receipts, pricing and payment terms. * Resolve pricing, quantity or tax discrepancies with Suppliers and Finance. * Track procurement costs and productivity, manage accruals and support month-end closing. * Prepare forecast for budgeting and rolling forecasts purposes. * Perform stock audits at 3rd party premises. 4\. Contract, Compliance & Governance * Support contract administration, pricing updates, renewals and commercial reviews. * Ensure procurement activities comply with internal policies, regulatory requirements and HSSE standards. * Support internal, external and supplier audits to ensure procurement governance compliance. * Maintain accurate and auditable procurement documentation and records. 5\. Stakeholder & Supplier Relationship Management (SRM) * Partner with Supply Chain, Production, Engineering and Finance to deliver business outcomes. * Conduct supplier performance reviews covering delivery, quality, cost, service, and safety. * Resolve supplier issues, claims and escalations, driving corrective actions where required. **Requirements Qualifications & Experience** * Diploma or Degree in Supply Chain Management, Business, Engineering, Chemistry or a related discipline. * Minimum 7–10 years of procurement and planning experience in chemical or petrochemical environments. * Proven exposure to S&OP and production planning interfaces. * Hands-on experience in direct materials procurement and invoice verification. * Strong ERP proficiency in SAP B1 and SAP S/4HANA **Technical & Commercial Capability** * Strong commercial negotiation and contract management skills. * Good understanding of Incoterms, international trade, supply risk, inventory planning and hazardous/bulk chemical logistics. * Proficient in Microsoft Excel, including formulas, pivot tables, data analysis and reporting. * Competent in working with SharePoint for document management, collaboration, version control and maintaining auditable records. **What we Look For** * Meticulous, organised and detail-oriented. * High level of integrity, accountability and professionalism. * Self-motivated team player who thrives in a fast-paced environment. * Comfortable working with numbers and analysing data accurately. * Positive attitude with a strong willingness to learn and grow. * Strong negotiation and stakeholder management skills. * Excellent written and verbal communication skills in English. * Critical and strategic thinker with good problem-solving abilities. * Growth mindset with the ability to adapt and embrace challenges. **Role Fit Considerations** * Requires high autonomy; not a junior or transactional buyer role. * Requires plant or direct materials experience; not an indirect or corporate services role. **Target Backgrounds** * Chemical manufacturing plants * Process manufacturing environments, including petrochemicals, polymers, specialty chemicals or industrial gases. **Why Join Us?** * Gain visibility with operations and senior management while influencing business decisions. * Make a direct impact on production continuity, cost optimisation and supply resilience. * Collaborate with Global Procurement teams and broaden professional exposure. * Drive real change in a dynamic, fast-paced environment where your contributions are recognized and valued.