COMPANY GUIDE

COMPANY GUIDE Head Offi ce/Annaka Factory Access By Train To Niigata From JR Takasaki Station, Shinetsu Main Line to Isobe, Joetsu Shinkansen Kan-etsu Expressway then approx. 5min by taxi Annaka Hokuriku Shinkansen Approx. 15min by taxi from the Hokuriku Shinkansen Anna- To Nagano Haruna Station ka-Haruna Station The World’s Only Total Abrasive Process Machine Manufacturer To Yokokawa Route 18 Isobe Takasaki JCT By Car Takasaki Station Kita Kanto Station Expressway JR Shin-etsu Line Fujioka JCT From the Joshin-etsu Expressway Matsuida-Myogi IC, take Matsuida-Myogi IC the exit for Annaka/Matsuida. Turn right onto Route 18 to- Joshin-etsu Expressway wards Takasaki/Annaka. Turn right at the fourth set of lights OKAMOTO MACHINE TOOL WORKS, LTD. (Annaka Kogyo Danchi Iriguchi). Approx. 7km (10min) from To Tokyo Matsuida-Myogi IC. To Saku To Karuizawa Route 18 7-Eleven To Takasaki Shin-etsu Main Line Fire station Matsuida-Myogi IC Okamoto Machine Tool Route 18 To Fujioka Works Annaka Kogyo Danchi Iriguchi 〒 GS Usui River Head Office/ Parking Annaka Factory Sakuraya Sakuemon GS 〒 Isobe Station N Shin-etsu Main Line W E S OKAMOTO MACHINE TOOL WORKS, LTD. 2993 Gobara, Annaka, Gunma, Japan 379-0135 TEL : +81-27-388-9595 FAX : +81-27-385-1144 http://www.okamoto.co.jp 202006100MTR-0

The World’s Only Total Abrasive Processing Machine Manufacturer Technology the Right Way From 1935 to 2035 and beyond Development Production Proposal Sale Service Machine Tools Semiconductor Equipment Gears Casting World-class machine tools born of workmanship cultivated Trusted manufacturing equipment supported by proven tech- The roots of manufacturing Pursuing peak precision through integrated production sys- over the course of more than 80 years. nology that sustains market needs Founder Okamoto Kakusaburo’s creed lives on in our origins tems and in-house manufacturing Okamoto Machine Tool Works’ wide product range and global Cultivated over many years, our polishing technology is used Okamoto Machine Tool Works began with the fabrication of Casting sets the foundation for meticulous quality control scale in grinding machines place the company among the best to produce the chips in smartphones, computers, and auton- gears. In 1926, Okamoto In-house casting allows us to in the world. Since the developing of Japan’s first domestic omous vehicles, contributing to the future of interconnected Kakusaburo founded the implement meticulous quality surface grinder in 1953, we have constantly sought to create lifestyles in an IoT world. Our unique expertise and technology Okamoto Specialized Ma- controls. cutting-edge products as a leader in grinding machines. Our in abrasive processing enable the production of thinner, fl atter chine Tools Factory, which The foundry at our Okamo- diverse product lineup caters to all customer needs, including semiconductor wafers and devices for use across a broad a few years later developed to factory in Thailand has surface, form, cylindrical, internal, gear, and specialized grind- range of fi elds. Japan’s first domestical- a maximum monthly pro- ers, from general-purpose to fully automated CNC type ma- Our Semiconductor Equipment Division offers products in a ly-produced gear grinder. duction capacity of 1,800t, chines. wide range of categories: grinding, CMP/polishing, wrapping This development contribut- enabling us to manufacture Our mission is to produce the machines used in manufacture. and slicing. Our ongoing research and technical development ed signifi cantly to the manufacturing industry at the time. cast parts such as machinery frames and columns in-house We are proud to supply the ‘mother machines’ that support the of both software and hardware ensure us to we can match the Today, gear fabrication falls within the operations of group from wooden molds. This greatly improves our rate of in-house world’s production today. speed of our customers’ progress at the cutting edge. company Okamoto Koki Co., Ltd. The company uses automat- manufacturing, with an integrated production system that cov- Seeking to maintain and reasonable price and in quality, de- The ever-evolving semiconductor industry requires the devel- ed production lines with articulated robots to effi ciently manu- ers everything from design and casting to parts processing, livery and service as well as precision, and functions, we have opment of equipment that anticipates the future. Our Semicon- facture high-precision gears that are employed in fi elds such as coating and product assembly. In addition to improving quality, established an integrated production system in handling from ductor Equipment Division constantly tackles this demanding automobiles, agricultural equipment, and the outboard motor this approach contributes signifi cantly to raising production ca- supply to logistics in-house. Remaining sensitive to market challenge, off ering visionary ideas that contribute to the future. industry. Maintaining the entire production process in-house pacity, shortening delivery times, and reducing costs. It also al- trends and technical advances, we continue to research and with our own gear fabrication machinery allows us to off er rap- lows us to cater to customers requiring specialized casting. We develop the grinding processes the world demands. id, high-quality solutions. As the culmination of our cultivated produce high-rigidity casts in a diverse range of shapes and expertise, we provide high-precision ‘zero noise, zero vibration’ sizes, supplying quality casting to fulfi lls the needs of various gears and gear units. industries. 1 2

Our Business Machine Tools The Origin of Precision A leading global share in grinding machines Connection to end products ■ Automobiles　　■ Aviation　　■ Robots　　■ Smartphones/computers　　■ Large LCD televisions　　■ Molds　　■ Cutting-edge medical care Pursuing precision with an extensive range that meets the world’s needs Our Grinding Machine series contributes to the development of various industries by serving as the foundation of production ■ ‘Mother Machine’ Manufacturing Surface grinder Form grinder Cylindrical grinder Internal grinder Given that they are used to produce all manner of machinery and parts, machine tools sustain the world of manufacturing. ■ The Final Process in Manufacturing In manufacturing, grinding work plays a key role in the fi nal stages of processing; as such, the precision of grinding ma- chines determines the quality of finished products. Okamoto Machine Tool Works Compound grinder Profi le grinder contributes to various industries by man- Bed grinder ufacturing a wide range of high-precision grinding machines. What is a Grinding Machine? A machine tool that uses rapidly Gear grinder Double column type grinder rotating grindstones to grind metal into specific shapes by turning and applying reciprocating motion to the workpiece. Grinding machines are mother machines that serve as World’s largest hydrostatic guide bed grinding machine the foundation for various products. Grindstones are used to grind materials into UDG10035NC the desired forms, providing the precision required for further processing 3 4

Our Business Semiconductor Equipment The Ultimate in Planar Surfaces Looking to the future Connection to end products ■ Next-generation power semiconductor Sic　　■ Input wafers　　■ Electric cars　　■ IC chips　　■ Smartphones/computers　　■ Large lenses with cutting-edge manufacturing for IoT societies Trusted manufacturing equipment supported by proven technology ■ Polishing Technology Semiconductor equipment – a key part of the Our range of semiconductor equipment semiconductor manufacturing process supports manufacturing with technology that produces thinner, fl atter semiconduc- tor silicon wafers. Semiconductor Manufacturing Process ■ Contributing to cutting-edge Grinds/polishes wafer surfaces to a mirror fi nish Polishes wafer surfaces to smooth any unevenness in the pattern 　 technical innovation Final Polisher Wafer Polisher Okamoto Machine Tool Works contributes 【Front-end process】 to the progress of IoT in society, including Pattern fields such as robotics, AI technology, Circuit/ pattern Photomask Ingot Ingot Photoresist formation Ion production building cutting Wafer grinding/polishing coating on wafer Etching implantation Planarization (CMP) Electrode Inspection formation of wafer power devices for automobiles, fl at panel design surface screen mother glass, and increasing the capacity of electronics. Product Wafer backgrinding Wafer Chip Wire Trim & dicing mounting bonding Mold form Burn-in inspection/ Com- reliability Marking pletion inspection 【Back-end process】 What is a Semiconductor? Semiconductors are also used to con- Wafer fabrication grinder trol social infrastructure, such as train A substance that only conducts elec- operation systems, banking and bro- Grinds wafers from the back side to a customer’s ■ Large LCD panels　　■ Photovoltaic cells, solar panels desired thickness tricity under given conditions. The term kerage functions, electricity, gas, and generally refers to electronic compo- waterworks, underpinning our modern nents made using this arrangement. culture and lifestyle. All sorts of products are equipped with semiconductors, including dig- ital consumer electronics such as smartphones, computers and LCD televisions, as well as refr igera- tors, washing machines and cars. Pitch polisher Photovoltaic ingot compound grinder 5 6

Production Global Integrated Production System Global Scale: Assured quality with a production system spread across 4 locations – Japan, Singapore, Thailand, China Global-standard quality management systems Three ISO9000-certifi ed factories in Japan and abroad 　　 Japan Our fl agship factory complete with facilities 　　 Thailand Grinding machine integrated production Head Offi ce / and systems such as cleanrooms and me- Okamoto (Thai) Co., Ltd. system factory offering everything from Annaka Factory ticulous temperature control Integrated production system fl ow Ayudhaya, Thailand casting fabrication to machinery sales Annaka, Gunma Design Wood Machine molds Casting Coating proce Assembly Inspection Shipment -ssing /sale Sheet- metal Cleaning Coating processing All production processes completed in-house! ◎ Wood mold factory An effi cient network, coordinating 4 production facilities according to demand ◎ Casting fabrication plant Monthly casting production capacity: 1,800t ■ Overview ■ Overview Established: 1987 Established: 1982 2 Site area: 69,324m 2 Site area: 68,224m 2 Total fl oor area: 26, 585m 2 Total fl oor area: 27,648m ■ Wood molds ■ Basic design ■ Casting Automatic coating system ◎ Integrated production system factory ■ Processing using automated conveyors■ Coating Foundry coordination enables flexible machine de- ■ Assembly ■ Processing sign and manufacture ■ Coating ■ Testing ■ Testing Check operations at 　　 Singapore From design to manufacture of precision pro-all production facilities Okamoto (Singapore) Pte Ltd cessing machines, alongside semiconductor Woodlands Newtown, Singapore equipment production 　　 China Gear fabrication and local Okamoto Machinery (Changzhou) Co.,Ltd assembly/sale of grinding Changzhou, China machines ■ Overview Established: 2004 Site area: 8,778m2 Total fl oor area: 6,688m2 ■ Assembly ■ Gear processing/fabrication ■ Overview ■ Processing Established: 1973 ■ Assembly Site area: 24,000m2 ■ Coating Total fl oor area: 18,250m2 ■ Testing 7 8

Production Our flagship ‘mother machine’ factory – Head Office/Annaka Factory Traditional techniques live on through hand scrapers Our state-of-the-art main factory enables high quality and high precision Hand scrapers carry the tradition of more than 80 years of work- manship in machine tool production. The combination of this tra- ditional skill and the latest technology underpins manufacturing at Okamoto Machine Tool Works. ■1 Large-scale processing line ■2 Sheet-metal processing line ■3 Mid-size processing line ■4 Temperature-controlled booth The fusion of traditional techniques and cutting-edge technology ■6 Spindle processing/assembly ■5 World’s largest ultraprecision high rigidity bed grinder ■11 Semiconductor equipment assembly booth To meet the demand for ultraprecision grinding of liquid-crystal displays and other large parts, we have set up the world’s largest bed grinding machine in a temperature-controlled booth, with a processing range of L10m x W3.5m (W4m clearance). 2 5 3 ■12 Semiconductor cleanroom Resource recycling through fi ltration 4 The large-scale grinder in our tempera- 1 ture-controlled booth integrates treatment of grinding lubricant, helping to reduce industrial 6 waste and improve the environment. Similarly, we also collect, fi lter, and reuse silicon fl uid ■7 Measuring room from test processing in our semiconductor cleanroom. 7 9 Before fi ltering After fi ltering 8 11 ■13 Test grinding showroom 12 13 10 ■8 Cylindrical/internal grinder Batch fi ltration system for large-scale grinding machines assembly line ■9 Surface grinder assembly line Batch fi ltration system for semiconductors Completely windowless to avoid Double-walled structure with air temperature changes due to inner insulation layer sunlight exposure Semisubterranean construction ■10 Technical Development ■ Materials building Headquarters 13.7m [ Complete air conditioning ] Semisubterranean, windowless factory Embankment Complete air conditioning: temperature settings – Summer 26°C, Winter 20°C Temperature change: ±2°C/day 5m Factory floor 4.15m Materials storage Temperature diff erence: less than 3°C between fl oor and height of 8m Factory foundations [ Insulation ] Roof and exterior walls consist of a double-walled structure, with insulating material inserted in between. Earthquake-resistant loam tableland Semisubterranean construction sunk 4.15m beneath the ground’s surface, with concrete exterior walls reaching 5m from fl oor level. 9 10

Sales Global Network Key hubs effi ciently linked by a global network spanning manufacture to sales America Off erings tailored to the needs of customers with global ambitions Reaching users around the world Beginning with America, the history of our overseas operations is a testament to quality. We now off er products tailored to each region – Asia, America, Europe, and Oceania. Sales staff offer first-class advice on grinding Our sales staff are experts in grinding pro- cessing, equipped with a wealth of knowledge to offer optimal suggestions. In coordination Japan with our Technology Research Division, we Okamoto Machine Tool Okamoto Machinery organize training seminars for staff around the Europe GmbH (Changzhou) Co., Ltd. Okamoto Corporation world, constantly sharing the latest informa- tion. We are committed to a sales approach Herford Shanghai that always puts our customers fi rst. Sales Offi ce (D) Sales Offi ce Santa Fe Springs, Louisville, CA Sales Offi ce KY Sales Offi ce Nottingham Shenzhen Dalian Exhibitions, private shows - Sales Offi ce Sales Offi ce Sales Offi ce Windsor, Pursuing true quality by engaging CT Sales Offi ce with our customers In addition to offering a broad range of infor- mation and ideas through our daily operations, Germany we also hold large-scale exhibitions and regu- lar private shows that allow us to grasp the di- verse needs of our customers in the constant pursuit of greater quality. Okamoto Koki Co., Ltd. An affi liated company specializing in the fabrication of ‘zero noise, zero vibration’ gears Head Offi ce / Annaka Factory / North Kanto Sales Offi ce Toyama Sendai Hiroshima Sales Offi ce Sales Offi ce Sales Offi ce Greater Tokyo Fukuoka Sales Offi ce Sales Offi ce Giken Co., Ltd. Production & Sales Facilities (Okamoto Overhaul Division) Japan 10 locations Shizuoka Sales Offi ce Head Offi ce/Fukuyama Factory Onomichi Factory Fuchu Factory North America 4 locations Nagoya Sales Offi ce Europe 3 locations Osaka Sales Offi ce China 4 locations Okamoto (Thai) Co., Ltd. Okamoto (Singapore) Pte, Ltd. Asia 2 locations 11 12

Personnel Bringing together Professionals in Grinding – A Company Powered by People The Right People [ Technology the Right Way ] The relentless quest ◆Individuals who keep striving to improve their capabilities, knowledge and skills for ultraprecision ◆Individuals who consider what they can off er, determine what needs to be done, and act ◆Individuals who can use experience to grow ◆Ethical individuals whose actions align with social progress We seek talented people who value these aspects and seek success on a global stage. Abrasive processing professionals In our constant quest for ultraprecision – from micro to nano and angstrom – Okamoto Machine Tool Works strives to create a ‘grinding revolution’, a new total solution that will transform established ideas. As a group of professionals in complex abrasive processing technology (fi xed and free abrasive machining), we continue to challenge ourselves to meet the market’s demand for precision. Taking world-class technology to a new dimension We offer a higher level of abrasive processing solutions, including fully-automated surface grinding systems, highly efficient systems powered by IoT technology, and environmentally-friendly grinding machines. Constantly striving to be a leader in grinding machines, we will continue to off er the market world-class technology. Keeping traditional techniques alive By using traditional techniques such as hand scrapers in the production of machine tools, we strive to share Japanese manufacturing with future generations. Amid the globalization of manufacturing and increasingly high-tech approaches, we aim to provide younger staff with opportunities to fl ourish. Technology Fabrication Sales Control 13 14