大株主の所有状況（株式数、持株比率）
[{"name":"日本マスタートラスト信託銀行株式会社(退職給付信託口・九州電力株式会社及び九州電力送配電株式会社口)","value":333000,"percentage":"6.87"},{"name":"株式会社福岡銀行","value":214000,"percentage":"4.42"},{"name":"日本タングステン取引先持株会","value":210000,"percentage":"4.34"},{"name":"日本タングステン従業員持株会","value":194000,"percentage":"4.02"},{"name":"みずほ信託銀行株式会社","value":128000,"percentage":"2.65"},{"name":"明治安田生命保険相互会社","value":120000,"percentage":"2.48"},{"name":"株式会社西日本シティ銀行","value":101000,"percentage":"2.1"},{"name":"株式会社佐賀銀行","value":100000,"percentage":"2.06"},{"name":"宇部マテリアルズ株式会社","value":80000,"percentage":"1.65"},{"name":"日本生命保険相互会社","value":65000,"percentage":"1.36"}]
上位10株主の持株比率合計は31.95%です。
所有者別構成（単元数、持株比率）
[{"name":"個人その他","value":33658,"percentage":"65.6"},{"name":"金融機関","value":11733,"percentage":"22.87"},{"name":"その他の法人","value":3125,"percentage":"6.09"},{"name":"金融商品取引業者","value":1453,"percentage":"2.83"},{"name":"個人以外","value":0,"percentage":"2.55"},{"name":"個人","value":0,"percentage":"0.06"}]