Page 11 - Code of Ethical Business Conduct

Code of Ethical Business Conduct 9

and transactions related to imports to, or exports from, the United States.
Moreover, the international activities of Martin Marietta could be subject
to antitrust laws of foreign nations or organizations such as the European
Economic Community.
Because of the complexity of antitrust laws, it is imperative that advice
be sought on any questions regarding this subject from the Company’s
Legal Department. The criminal penalties imposed by courts related to vio-
lations of the antitrust laws could be severe in terms of both imprisonment
and fines, and they are imposed on both employees and employers.

Computer Use
The computer systems of the Company (including, but not limited to,
desktop and laptop computer equipment; mobile, phone or personal devices;
hard drives; printers; peripherals; software and operating systems; and
network and/or Internet-related accounts providing electronic mail, access
to the Internet, newsgroup access, and/or file-transfer capabilities) are the
property of the Company and are to be used for the business purposes
of the Company. Like any record, the information in any computer-related
file is Company property and should be treated and protected like any other
piece of Company property or Company record.
The computer or communication systems of the Company should not be
used to commit any illegal act or to download, transmit or receive sexually
explicit or other offensive material. In addition, employees are prohibited
from providing confidential information about the Company, its customers,
suppliers, directors, employees or its securities to the public. As with all
other provisions in this Code, this provision is not intended, nor will be
interpreted, to interfere with, restrain or prevent employee communications
regarding wages, hours or other terms and conditions of employment.
Access to social media sites, including, but not limited to, blogs, wikis,
social networks, multi-media networks, social communities, forums, virtual
worlds and other online spaces in which user-generated content is displayed
or posted, such as Facebook, LinkedIn and Twitter (social media), that is
utilized principally for business purposes, though also may be used by em-
ployees for incidental personal communications, is permissible. Any access
and use by employees of the Company’s servers, network and Internet
connections to participate in social media is subject in all respects to the
Company’s computer use policy.