Last week, on 25 June, he bought 200,000 shares at an average price of 17 cents, raising his holding to 600,000 shares.

Left: Independent director Chang Feng-chang bought 200,000 shares on 25 June.
Right: Chew Kim Kuan was appointed Financial Controller in Feb 2014. She holds 433,000 shares.The stock trades at a discount to the Net Asset Value of 29.7 Singapore cents a share. 

The trailing PE is 4.97X while the dividend yield, 1.56%.

Aside from the apparently low valuation of the stock, perhaps the insiders are confident of the long-term prospects of Yamada as well as a good set of results in the remaining quarter of the financial year ending today (30 June).

In 9MFY2014 (ended March 2014), Yamada recorded RMB85.3 million in net profit, up 23.6% year-on-year, thanks in part to the non-recurrence of the foul weather that affected the yield of its mushroom farms in FY2013.

Bolstering its bamboo business segment, Yamada recently announced  the proposed acquisition of a moso bamboo plantation.

It also proposed to purchase a 19% stake in Zhangzhou Meisei Foods Co. which manufactures a wide variety of agricultural processed food products, including different types of processed bamboo shoots, pickled vegetables and other processed vegetables.