Investments in associated companies comprise the 30% share in SRN Sound Proof Co., Ltd., Chonburi, Thailand, the 25% share in Wuhan Nittoku Autoneum Sound-Proof Co. Ltd., Wuhan, China, the 25% share in Wuhan Nittoku Autoneum Auto Parts Co. Ltd., Wuhan, China, and the 25% share in ATN Auto Acoustics Inc., Kamioguchi, Japan. The investments in associated companies are measured using the equity method. The net book value of investments in associated companies changed as follows: