COMPANY PROFILE Confidential Contents Confidential 1 Introduction 2

COMPANY PROFILE Confidential

Contents Confidential 1. Introduction 2. Company History(Seestorm Korea to Achates Co. , Ltd) 3. Management Group 4. Products and Services 5. Quality Statement 6. Certification 7. Contact Information

Introduction q Company Name : ACHATES SEMICON Co. , Ltd (ex-Seestorm Korea Co. , Ltd) q Establish Date : May 1 st. 2003 q Co-CEO : JI Lee / ST Lee q Main Products l CVD/PVD Equipment Services : LAM(ex-Novellus) & Gasonics CVD Equipment for 200/300 mm wafers ü l l Spare Parts Sourcing for 200 mm/300 mm wafers ü OPM(Original Parts Manufacturer) : OEM qualified & Improvement proven product ü Overhaul & Repair : Large Install base for rebuild & design for sub-modules ü Improvement Parts(CIP) : Qualified & Enhancement Kits ü 2 nd Sourced Parts : Exclusive network to supply 200 mm & 300 mm parts PPE(Precision Polymer Engineering) O-Ring/Band Product ( www. prepol. com ) ü l l Confidential Refurbishment, Installation, Relocation, Upgrade, Wafer Conversion and Process Modification Exclusive Agent for Samsung Electronics(Korea/China) and SK Hynix(China) Porvair(ex-TEM) Microelectronics Product ( http: //www. porvairfiltration. com ) ü Agent in Semiconductor, LCD, LED, OLED and FPD Industry ü High Purity Gasket Filters, Point of Use Filters, Flow Restrictors and Chamber Vent Diffusers Chemours Fluoroproducts ( www. Chemours. com ) ü Created by separating the Du. Pont Performance Chemicals businesses into a stand-alone corporation since 2015 ü Agent for Coolant (Opteon. TM SF 10) using in Chiller which is one of sub-modules of Semiconductor Process Equipment

Company History May, 03 June, 09 March, 13 Company Open “Seestorm Korea Co. , Ltd” *Novellus Equipment Refurbishment *Agent of Dupont O-ring(SK Hynix) *Agent of Valqua O-ring(SK Hynix) Changed Company Name “Achates Semicon Co. , Ltd” *Contract with AG Semiconductor >Israel Project(Equipment Deinstallation) >Toshiba Project(Equipment Deinstallation) >Hynix Project(Equipment Deinstallation) *Contract with RED Equipment >Toshiba Project(Equipment Deinstallation) *Contract with Infineon Technology Sdn Bhd Confidential *Equipment Business with 1) SK Hynix Semiconductor 2) Dongbu Hitec Co. , Ltd 3) Magna. Chip Semiconductor 4) Micron Singapore 5) SMIC in China *Equipment & Spare Part Business *Currently, Agent for PPE O-ring(Samsung) *Currently, Agent for Porvair Filter(Korea) *Currently, Agent for Coolant(Korea)

Product – Equipment Refurbishment Service v Concept 1 for 150 mm wafers l l Si. O 2 (Oxide) Si. N (Nitride) TEOS Tungsten v Concept 2 for 200 mm wafers Sequel (Si. O 2, Si. N, Teos) Altus (Tungsten) Speed (HDP) Asher (PEP 3510, L 3510 Aura 2000) l Inova / Sabre l l v Concept 3 for 300 mm wafers l Vector l Speed l Altus Confidential

Product – Spare Parts v Features OPM (Original Parts Manufacturer) OEM Qualified & Improvement Proven product Enhancement Kits OVERHAUL & REPAIR Large Install base for rebuild and design for Sub-modules IMPROVEMENT PARTS Qualified & Improvement Proven product Enhancement Kits 2 nd SOURCE PARTS Exclusive network to supply 200 mm & 300 mm parts q Local Engineering related Services q Local Process Support for Parts Developments and Improvements q Local Manufacturing and Repair Center q Local Parts Stock Warehouse q More than Several Hundreds of Parts, Materials, and Module Suppliers in ACTS’s Database whom they are already qualified in Major Semiconductor Chip and Original Equipment Manufacturers q Highest Quality Standards q Utmost Competitiveness Price Confidential

Product – PPE Sealing Product Agent(SAMSUNG) High performance O-rings High performance seals and gaskets Custom precision moulded parts Diameters from 1 mm up to 2. 6 m X-Seals, lip seals, other geometries End effector pads, microfluidic seals Confidential Bonded elastomers L-motion, Mono. Vat SVDs, plastic bonded components

Product – Porvair Filter/Diffuser Agent(Korea) Porvair Filtration Group’s Point-of-Use(POU) filters are manufactured in a state of the art Class 100 Cleanroom using an ISO 9001 Certified Quality System. The filters are precision welded in a specially designed glove box with atmosphere purification. A deionized water flush, followed by a high pressure, 0. 003 um filtered nitrogen flush removes particles and prevents particle shedding. Our POU filters are vacuum dried to less than 10 ppb moisture as needed and the organics are less than 10 ppb THC. Particle free, Chemically clean, organic free handling and bagging of the POU filters maximizes the out-of-package cleanliness for installation in the most demanding microelectronics applications. exceeding the high purity gas handling filtration requirements for semiconductor processing, Porvair’s high quality products are extensively tested to insure that they meet the critical filtration efficiency, precise flow control and safety requirements for gas delivery systems in semiconductor manufacturing. v Application • Wafer production • Chips for computers and tablets • Chips for cell phones • Chips for Io. T sensors and control devices • Micro-electromechanical systems(MEMS) • Hard disk drives Confidential

Product – Chiller Coolant(Korea) Opteon. TM SF 10 is a clear, colorless, nonflammable, thermally stable Fluorinated fluid developed in response to worldwide market demand For a low environmental impact heat transfer fluid, brine coolant, Dielectric fluid and test fluid as well as a solvent for cleaning and Carrier fluid applications. Benefits • • • Boiling point 110 °C Zero ODP(Ozone Depletion) Very Low GWP(2. 5 GWP), 100 -yr ITH Can replace PFCs, PFPEs, HFCs, and HCFCs in heat transfer applications Favorable Characteristics of the product, viscosity and density, enable superior heat transfer performance Confidential

Quality Statement The Industry Quality Standard It is our intention to be "The Best in the semiconductor industry of One Stop Solution provider”. For this Achates is sincerely committed to providing products and services that meet or exceed customer expectations. Competitive Edges Highly experienced and dedicated team will provide innovative and competitive advantages to our clients and serve them with value services. Confidential Commitment to Excellence Responsibility to clients is the First and Foremost Continuous Improvement is a Key Element We do our best to achieve higher than industry standard with continuous efforts for further improvements and supply quality products and finish projects on schedule without accidents. Establish a close, going professional relationship with clients to ensure efficiently coordinates, manage projects to achieve common goals. We do our best to meet customer’s expectation the first time and every time. Achates and our partners continually study and research for new methods and process as well as cost effective implementations.

Certification Confidential

Contact Information JI Lee (Equipment & Technology) Tel : (82) 10 4336 6101 jaeik@actssm. com ST Lee (Business Management Operation) Tel: (82) 10 8592 6245 stlee@actssm. com Confidential