Dipl.-Ing. M.Sc. C.Eng. MBA VALDINEY DOMINGOS DE OLIVEIRA

Spearheaded 40+ international industrial and clean energy projects in Silicon Supply Chain. Key engagements: Brazil’s 5GW BraSil Fotovoltaico, PMB Silicon Malaysia, and REC Norway Lead the full engineering life cycle of Future Carbon (Graphite Operations) in Wales 100.000 mt per year and Czochralski Furnaces components. Development of the Project of full integrated Silicon (from Quartz to Modules) via Fluidized Bed Reactor (Silane), Czochralstic (MCZ), DWS (Diamond Wire Sawing), Bifacial Topcon n-type.

• Led $10B Greenfield Silicon Project (20GWp New Energy Hub) |Managed 140+ global professionals | Delivered full FEL1–FEL4 lifecycle | Developed ESG-integrated Silicon utilities and infrastructure • Led the entire FEL1 to FEL3 including the Ingot and Wafer Design Basis with the Best Available Technology for the crystal growth method considering the 11N Polysilicon grade (CZ, MCZ, FZ, DSS and Mono-like) gement Reliance (M&A) with the review of the OPEX, CAPEX and Greenfield Plan for Belefeld and USA.

Development of the Graphitization process of speciality Graphite to direct application on Czochralski Furnace (Linton and JA Solar) with strong grain structure uniformization (similar to SIGRAFINE R8500 from SGL)and material provided as rotating shaft (isotropic anthracite basis), crucible support and support structures Delivered technical value via customer-focused innovation in smelting operations Prospect and lead the approval process for Anthracite Mine for Graphite application.

Director of Metallurgy and Engineering develop, optimize existing or new mgSi and crystal growth DSS processes for customers; provide technical assistance, develop new equipment and tools for proprietary process; assist in cold start, ramp up of new silicon smelting and refining systems; jointly develop improved and optimized metallurgical silicon processes for optimal polysilicon production; assist in the development of upgraded metallurgical Si.

Administrate the Bottle, Blow and Fabrication of Beverage lines of production, driving 400 people in this diferents process upon the maximun performance and minimun process losses. Responsable to keep organization clime and guarantee the culture change in a familiar company tha was recently adquired by a multinational Group. During the time in Coca Cola, I was responsible also for the Lean Six Sigma Projects as a National Coca Cola Brasil representant. Mentoring, Coaching and executing Projects (PMI).

Responsable for 02 two eletrical submerged arc furnaces of Silicon Metal, manager all the Production Process, since Raw Materia Treatment, Feed and Operating Eletrical Furnaces, Refing process, Cold solidification, Crushin and Screeming Process and shipment of Silicon Metal (Metallurgical and Chemical Grade). Implement Soedeber Technologies using Al Shirt to produce high pure Silicon in the Chemical and Metallurgical grades. Develop the begins of process to optimize Silicon Metal purification using Lixiviat

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ISO 14001; Norms and enviromental rules, Qualitative and Quantitative tests, Geologhy, Expertise applied to different fields of Industries, etc...

Leadership, Ethics, and Professionalism; Corporate Communications; Marketing Management; Management in Organizations; Corporate Financial Reporting; Business strategy and games, International Economic Environment of the Firm, etc

Thermodynamics, Solutions, Fluidynamics, Metallurigcal Mixtures, Kinectics, Submerged electrical arc furnaces, etc...

Diferencial and Integral Calculus; General, Mechanical, Electronic and Themo Physics; General, Inorganic, Organic, and qualitative Chemistry; Physical Chemistry; Industrial Process; Stoichometry; Materials Mechanic and Fluidynamics; Unit Operations; Transport Phenomena; Themordynamics; etc