On October 27, 2014 Roottel Sp. z o.o. together with Sevitel Sp. z o.o. and Sybet Sp. z o.o., signed an investment agreement with the Chinese company Heilongjiang Zhongzilongkong Energy - Saving Technology Development Co., Ltd.

The joint intent of both Parties is to conduct business in the People's Republic of China in the field of environmental protection and safety in coal mines.