Langit Biru Mason Group
Langit Biru Mason Group, is a group that was established by the former supervisors and masons of KUD Kertajaya that was no longer CPO of BIRU since the end of 2013. This group is located in the work area of KUD Kertajaya in Medowo Village, Kandangan, Kediri. Although this group was formed to serve requests from members of KUD Kertajaya but they also started working on in the pig, laying hens and beef cattle farmers. Langit Biru Mason Group works in 2 districts as the Sub-district of Kandangan, Kediri, geographically is close to by Bareng and Wonosalam, sub-districts in Jombang. KUD Kertajaya itself consists of about 300-400 people. More than 200 members are already using biogas.