The Nippon Mining Museum exhibits materials from the hundred-year history of the constituent companies of the Nippon Mining Holdings Group. It includes not only priceless materials from the industrial history of mining and metal refining in Japan, but also exhibits conveying how the Group prospers together with local communities, as symbolized by the "Giant Stack," and the Group's philosophy of harmonizing with the global environment. Every year large numbers of visitors to the Hall, from surrounding communities or companies, as well as primary and secondary school students from Hitachi City (Ibaraki Prefecture) on field trips, come to appreciate the business activities and approach of the Nippon Mining Holdings Group.

The JOMO Sunflowers are one of Japan's top women's basketball teams. The Basketball Clinic has begun since 1995, to deepen communication with citizens in the community and promote the enjoyment of basketball. At the ten-year mark in 2005, as part of a program to strengthen contributions to society and to respond to the hopes of basketball fans, a special team centered on former Olympians who played on the Japan team was formed and the frequency and coverage of the clinics have greatly expanded. In 2005, the Basket Ball Clinic was held at 69 locations across Japan, the smiling faces of 2,905 children learned the fun and beauty of basketball.

The JOMO Fairy Tale Award is an annual competition in the creation of original fairy tales on the theme of "heart-to-heart contact." The 36th annual competition in 2005 welcomed 10,202 entries from members of the public, both adults and children. A collection of winning stories is published in a book called "A Bouquet of Fairy Tales," which is donated to welfare institutions. In addition, the JOMO Children's Fund makes a donation to the Japan Council of Social Welfare.

Under a "Mori no sato oya" (means foster of forest) contract signed in April 2005 with the Hara village in Nagano Prefecture, Japan Energy is cooperating in the management of the village's forests. One aspect of this activity is Group officers, staff, and their families participate as volunteers, working with citizens of the community, in tree planting and other forestry work in and around the "Hara-mura JOMO Ayumi-no-mori" forest.
Japan Energy also used "3.9 (sounds like "thank you" in Japanese) Paper" which is made from thinning timber, in the JOMO Fairy Tale Award collection, "A Bouquet of Fairy Tales" for its paper stock. 72 tons of paper are required annually for "A Bouquet of Fairy Tales." By using of 3.9 paper, 72 tons of thinning timber in the contacted forests of "Mori no sato oya" of Hara village are allowed to be used in paper materials. And its profits will be used for forest management in Hara village.
This activity was the first to be awarded the "3.9 Green Style Mark" for this initiative's contribution to the campaign of Japan's Forestry Agency to promote use of domestic lumber.