THIS DOCUMENT CONSTITUTES PART OF THE PROSPECTUS COVERING THESE
WHICH HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933.
The date of this document is June 30, 2003
STOCK OPTION PLAN
To Our Optionees:
We are pleased with this opportunity to provide you with information regarding our Stock Option Plan,
referred to in these materials as the “Option Plan.” We believe the Option Plan is an important part of the benefits
provided to our employees and consultants. Please take the time to carefully review this information.
Dionex Corporation (the “Company”) adopted the Option Plan in order to provide you with an opportunity to
share in the Company’s growth. The Company believes the Option Plan assists it in hiring qualified employees
and consultants and in building a satisfying long-term relationship with existing employees and consultants through
recognition of their contribution to the Company.
We have divided our discussion of the Option Plan into three parts. The first part of this document describes
the terms of the Option Plan, which provides for the grant of what are called incentive stock options (tax-
advantaged options) and nonqualified stock options (options that do not have special tax advantages). The
second and third parts of this document describe the tax consequences relating to your participation in the Option
The following information is intended to be a summary. It may not answer all the questions you have about the
Option Plan or your option and is not intended to go into every detail of the Option Plan or your option. In
addition, please be aware that the terms of options are not required to be the same for every optionee. Please be
sure to carefully review your option grant to be sure that you understand its specific terms and conditions. A copy
of the Option Plan or your option(s) can be obtained from the Controller, at the Company’s principal offices at
501 Mercury Drive, Sunnyvale, Cal