MKS Establishes Asia/Pacific Operations

David Jones Appointed Managing Director, Asia/Pacific

Waterloo, ON – December 5, 2005: MKS Inc. (TSX: MKX) announced today it has established a new business presence in Asia Pacific. The Company also announces the appointment of David Jones to the position of Managing Director, Asia/Pacific.

With this announcement MKS extends its well established presence in Europe and North America, where its application lifecycle management (ALM) business has grown significantly over the past few years, to the Pacific Rim, where the company will offer local service and support for the company’s rapidly growing customer base in countries such as Australia, China, Japan, Korea, and Singapore. Many of MKS’s global customers, including HSBC plc, JP Morgan Chase, and Electrolux have deployed MKS’s ALM solution, the MKS Integrity Suite® within their Asian operations, including China, Japan, Singapore, Australia and India.

The application management challenges facing large enterprises in Asia parallel the challenges MKS has enabled large enterprises to solve in US and European markets:

• Automation of application development processes to drive productivity
• The rising complexity of application environments and teams driving the need for geographically diverse teams to collaborate effectively in real time.
• The accelerating rate of change of distributed Java and .NET-based applications
• The stringent regulatory climate resulting in tighter control and audit-ability and enforcement of process
• The need for system integrators, outsourcers and offshore teams to work as one with the enterprise and adhere to corporate quality and regulatory compliance standards

“Whether in embedded technologies, pharmaceutical, banking or telecommunications sectors, as large enterprises further consolidate around customers they all are aggregating their products and channels into common service processes and the dependence on software to run their business is increasing,” says David Jones, Managing Director, Asia/Pacific for MKS. “MKS has proven in Europe and North America that from requirements management through to deployment, we enable global corporations to enhance their application development and IT operations processes proving compliance. The MKS Integrity Suite also provides the real time metrics they need to support management decision making.”

“Our steady expansion in Europe/Americas and focus on large enterprises has driven deployments of MKS technology to development teams and offshore firms in Asia/Pacific,” says Michael Harris, MKS President and COO. “MKS is now pleased to bring our solutions directly to enterprises headquartered in South East Asia, Japan and Australia and to enable these enterprises to benefit from our technology and expertise in ALM. I am delighted to have David leading our entry into these markets. He has a tremendous track record in developing significant enterprise software businesses with the largest companies in the region.”

David Jones Biography
Prior to joining MKS, Mr. Jones was General Manager and VP Asia Pacific & Japan for Financial Services at Siebel Systems and Eontec Asia Pacific & Japan. Mr. Jones was also Managing Director, Cognotec Asia Pacific, and Managing Director of Infinity, a SunGard Company, for Japan and Korea. He is fluent in English and Japanese and is based in Singapore.

About MKS
MKS is the premier provider of application lifecycle management solutions for the global 1000. MKS’s solution spans from requirements management to deployment providing customers with enhanced development productivity, visibility over processes, and improved IT controls for regulatory compliance. MKS’s software is distinguished by its single architecture and deep integration of featuress delivering collaboration throughout the development lifecycle, rapid implementation and low total cost of ownership. Founded in 1984, MKS serves more than 10,000 customers in countries across the world. Whether through deployment of MKS’s solution strategically on an enterprise scale, or by leveraging individual components to solve project-level challenges, our customers can use MKS’s software to enable higher levels of process maturity, better manage global development activity and safeguard their most critical business applications and software assets. Under its widely known MKS Toolkit brand, MKS also provides UNIX-Windows co-existence and system administration that significantly cut development and administrative costs and reduce time to market, while enabling enhanced performance. More information about MKS can be found at http://www.mks.com or by calling 1-800-265-2797 (US & Canada), +49-711-351775-0 (Germany), +44-1483-733900 (United Kingdom) and 1-519-884-2251 (Rest of World).

Copyright © 2005 MKS Inc. MKS, MKS Integrity Suite, and MKS Toolkit are trademarks or registered trademarks of MKS Inc. All other trademarks mentioned in this release are the property of their respective owners.

This news release contains forward-looking statements that involve risks and uncertainties, which may cause actual results to differ materially from the statements made. When used in this document, the words "may", "would", "could", "will", "intend", "plan", "anticipate", "believe", "estimate", "expect" and similar expressions are intended to identify forward-looking statements. Such statements reflect the Company’s current views with respect to future events and are subject to such risks and uncertainties. Many factors could cause our actual results to differ materially from the statements made including those factors detailed from time to time in filings made by the Company with Canadian securities regulatory authorities. Should one or more of these risks or uncertainties materialize, or should assumptions underlying the forward looking statements prove incorrect, actual results may vary materially from those described herein as intended, planned, anticipated or expected. Although the Company believes the expectations represented by such forward looking statements are reasonable, there can be no assurance that those expectations will prove to be correct. The Company does not intend and does not assume any obligation to update these forward-looking statements.

US and Canada Media Contact:
Email: pr@mks.com

David Jones

Managing Director MKS Asia/Pacific

Phone: 65 68325534