An extranet is a private network that uses Internet technology and the public telecommunication system to securely share part of a business's information or operations with suppliers, vendors, partners, customers, or other businesses. An extranet can be viewed as part of a company's intranet that is extended to users outside the company. It has also been described as a "state of mind" in which the Internet is perceived as a way to do business with other companies as well as to sell products to customers.

An extranet requires security and privacy. These can include firewall server management, the issuance and use of digital certificates or similar means of user authentication, encryption of messages, and the use of virtual private networks (VPNs) that tunnel through the public network.

Companies can use an extranet to:

We understand that HSE is a core element of best practice. That is why we are committed to listening and responding to the needs of our customers, our workmates, our subcontractors and our agents. Working with our integrated partners and others in the industry, we try to raise the HSE standards.

The care that we put into the safety of our services and practices is strictly in compliance with all environmental laws and regulatory standards on a worldwide basis. Objectives like no accidents, no harm to people, no damage to the environment, no delay of projects are not enough. We also need no wastage and no excess usage of any natural resource in our routine work. Therefore, our people can go home happily after their daily work.

• Exchange large volumes of data using Electronic Data Interchange (EDI)
• Share product catalogs exclusively with wholesalers or those "in the trade"
• Collaborate with other companies on joint development efforts
• Jointly develop and use training programs with other companies
• Provide or access services provided by one company to a group of other companies, such as an online banking application managed by one company on behalf of affiliated banks
• Share news of common interest exclusively with partner companies

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