Managing portfolio of liquid crystals.

- Managing two categories: Thermoplastics and Concrete of Sika China, annual spend 80 mCHF, including chemicals, tolling, and trading products, used in 9 production sites in China. 833kCHF structural saving achieved for 2023, other than market commodity movement.- Taking ownership of MBCC CN concrete materials and driving synergy (- 830 kCHF) projects since May, annual spend 21mCHF- Driving cost improvement projects of 2021 acquired local waterproofing company, -2% achieved for 2023- Close exchange with business team on sourcing strategy and market trend- Responsible for RFQ of propanolamines and acrylic acid globally, annual spend 35 mCHF- Close collaboration with regional and global team on sourcing strategy development and negotiation preparation with Asian suppliers for overseas Sika operations- Collect and understand sustainability efforts from suppliers and trends of the market

- Covered materials under all 6 direct categories and Americas (AM) countries with Sika presents- Investigated and proposed to Sika AM team of new sources in Asia for cost saving and risk mitigation- Facilitated communication between Region APAC and AM to leverage negotiation with APAC suppliers- Monitor across region feedstock price trend and propose arbitrage opportunities to AM team, e.g xPEG, polyols- In 2022, identified projects of $2m+ saving potentials and $910k realized. Proposed offsets of 18 high-risk items, and at various stages of qualification

- Managed portfolio of €25Mio (fine chemicals) and €3Mio (packaging) supplying to multiple sites (CN&DE)- Account for key building blocks sourcing of one process development lab in Darmstadt, DE Electronics- Facilitated projects involving cross-functional team to realize saving opportunities or enhance supply security- Worked closely with global sourcing team in various regions and efficiently leveraged over sites and suppliers- Deep dive into financial and sustainability topics of core Electronics Chinese suppliers

- Scouted chemicals in China for Merck Group - Performance Materials (now Electronics) sector, including electronical chemicals, cosmetics, and API intermediates. Performed visits to suppliers to assure adequate QMS- Responsible for direct sourcing activities for Merck PM China sites, over €12Mio spend- Posted Chinese chemical supplier market updates to internal stakeholders, and facilitated urgent supply issues

-Responsible for import custom clearance for over 2000 chemical/biological products offered by Sigma-Aldrich family-Good knowledge of Chinese chemical import/export regulations and licenses application process-Timely communication with forwarders and internal coordination to ensure business continuity-Achieved 10% cost reduction and faster delivery by monitoring and optimizing shipping patterns and schedules

-Design synthetic routes for porphyrin-like macrocyclic compounds-Investigate their long, directional interactions in cofacial silicon porphyrin oligomers by Gaussian and AIM2000