(Yicai) Dec. 15 -- Shares of Vinda International Holdings jumped after the family of Indonesian tycoon Sukanto Tanoto offered to buy all shares in the Asian sanitation supplies maker that it does not already own for HKD26.1 billion (USD3.3 billion).

Vinda [HKG: 3331] was trading up 7.5 percent at HKD22.25 (USD2.85) as of 1.35 p.m. today, after earlier gaining as much as 9.4 percent. The stock closed at HKD20.70 yesterday.

Isola Castle, a company indirectly held by Tanoto's family, has offered Vinda's stakeholders HKD23.50 per share, a 13.5 percent premium over the target firm's closing price yesterday, a 19.4 percent premium over its average closing price in the past 30 days, and a 150 percent premium over its book value as of June 30, according to an exchange filing published today.

Vinda has about 1.2 billion shares, but the Tanoto family already holds 7.7 percent. Therefore, Isola Castle would have to pay HKD26.1 billion to buy the remaining 92.3 percent stake in Vinda.

Swedish personal care product maker Essity, one of Vinda's major shareholders, and Li Chaowang, founder and chairman of the company, have already agreed to the acquisition, the filing showed. Essity holds 51.6 percent of Vinda's total equities, while Li owns 21 percent.

Vinda is an investment holding company registered in the Cayman Islands that specializes in selling household paper. It does business in the Chinese mainland, Hong Kong, and overseas.

Editor: Futura Costaglione