ENDO Endocan Corporation (CE)

X-Change Corporation (OTCQB: XCHC) announced today that Guardian Telecom, Inc. has executed a supplier agreement with W.W. Grainger, Inc. for worldwide distribution of Guardian's Products and services.

Guardian's industrial communication equipment for the oil and gas, refineries, pipelines, mining, nuclear and power facilities, transportation and services industries has executed a partnership for its products to be sold in the Grainger Supplier Handbooks, websites, e-commerce initiatives, and through other media sources. Grainger will use its SKU to promote and sell Guardian Telecom's product lines.

Darren Epp, Vice President of Operations of Guardian Telecom, Inc., states, "We are very excited to be working with Grainger, for we now have increased worldwide coverage, and have an ecommerce platform to expand our products globally and strategically through the one of world's largest supplier of industrial and operating products. We have the ability to grow our revenues five-fold over the next 24 months. Guardian continues to increase its distributor channel to handle the needs of its growing customer base."

Grainger offers more than 400,000 products in distribution worldwide, ranging from mop buckets and power drills, to water pumps and power generators to drill bits. In addition, it will source more than a million more products on request from customers, using the Internet as a sourcing tool.

Grainger's e-commerce transactions have climbed to 27% of its total $8.1 billion in sales and are projected to grow to more than 40% within five years. Grainger's $2.2 billion in sales through electronic commerce in 2011 ranked the company as the 15th largest e-retailer in the U.S. and Canada. With Grainger's e-commerce platform combined with its mobile-optimized web site, designed specifically for iPhone, Android and other mobile technologies, customers can view real-time updates of inventory available in their distribution centers, and with their orders.

W.W. Grainger, Inc. with 2011 sales of $8.1 billion is North America's leading broad line supplier of maintenance, repair and operating products, with expanding global operations. For more information about the company, visit www.grainger.com. Grainger shares are traded on the New York and Chicago stock exchanges.

Guardian Telecom, Inc.

Guardian Telecom, Inc. is a leader in the design and manufacture of industrial communication equipment for oil and gas companies for on and off-shore rigs, oil refineries, mining, nuclear and power facilities worldwide. Guardian is ISO 9001-200 certified and designs, manufactures and distributes globally Industrial Telephones, Hazardous Area & Explosion-Proof Telephones, VoIP Telephones, Accessories, Acoustic Booths and Paging equipment with certifications including: CSA, IC-CS03, UL, FCC, EU ATEX/CE, NEMA, ABS, ACA (Australia), KSA-SASO (Kingdom of Saudi Arabia) and CFT (Mexico). Guardian has manufacturing facilities in Calgary, Canada and has sales and technical support offices in the United States, UAE and Dubai and Mexico. For more information please visit www.guardiantelecom.com.

About X-Change Corporation

X-Change Corporation is building interests in a broad range of oil and gas projects worldwide. The Company is an independent energy company engaged in the production, development, acquisition, exploitation and exploration of crude oil and natural gas.

This Press Release includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Act of 1934. A statement containing works such as "anticipate," "seek," intend," "believe," "plan," "estimate," "expect," "project," "plan," or similar phrases may be deemed "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Some or all of the events or results anticipated by these forward-looking statements may not occur. Factors that could cause or contribute to such differences include the future U.S. and global economies, the impact of competition, and the Company's reliance on existing regulations

X-Change Corporation Media contact: Guardian Telecom Calgary office: investorrelations@guardiantelecom.ab.ca 403-258-3100 ext.172 Or Glenn Crowe - Marketing Department