PT. Jayamas Dwi Perkasa was founded in 2006, is engaged in bottled drinking water under the Sierra brand. Management is very committed to always serving the best quality water that can be drunk by the Indonesian people, both for toddlers, teenagers, and adults. So that all water manufacturing processes, packaging processes, and shipping processes are our priority to be the best for consumers. Management is committed to maintaining product quality, by always ensuring the production process runs according to the requirements of SNI with ISO 9001 for the quality system and is audited regularly by the Indonesian POM so as to ensure the feasibility of Sierra water to be consumed every day.