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Affiliated Companies

Sumisei Engineering Co., Ltd.
Design, drawing and engineering services

Shinsen Seiki Co., Ltd.
Processing of all types of machinery parts

Sumisei Hydraulic Systems Co., Ltd.
Production, maintenance and sales of aerospace and hydraulic equipment

SPP Nagasaki Engineering Co., Ltd.
Maintenance, repair and overhaul on aircraft landing gear systems and customer support

SPP Aerospace Service Inc.
Business development and customer support for Commercial Landing Gear Systems

SPP Canada Aircraft, Inc.
Design of Commercial Landing Gear Systems

CFN Precision Ltd.
Production and sales of aircraft parts

Tecnickrome Aéronautique Inc.
Surface finishing of aircraft parts

Sumitomo Precision USA, Inc.
Production and sales of heat exchangers for aerospace

Ningbo SPP Hydraulics Co., Ltd.
Production and sales of QT pump

Sumitomo Precision Shanghai Co., Ltd.
Development and sales of Ozone Generator

SPP Technologies Co., Ltd.
Production, sales and support of MEMS/semiconductor related process tools

SPT Microtechnologies USA, Inc.
Manufacture and sales of thermal process furnace equipment etc. and relevant services for semiconductor related device industry

Silicon Sensing Systems Ltd.
Production and sales of motion sensors

Sumisei Sangyo Co., Ltd.
Sales of all types of materials and machinery parts

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