WorkVenture gives you an inside look at what it's like to work at STONE AGE INTERNATIONAL Co., Ltd., office & team photos, reviews and more. This is the STONE AGE INTERNATIONAL Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at STONE AGE INTERNATIONAL Co., Ltd..Apply to A DesignApply to HitachiApply to 945 HoldingApply to Admind