According to general legal principle

company can’t become its own shareholder.Nevertheless

relevant regulation has been changed in current corporate law of most country.In our country

the regulation of joint-stock company’s holding its own share is explicit

but it is not concrete for limited company

which is restricted in repurchasing stock of objection shareholder.Moreover there are no regulations about drawing bonus and voting and transfer and cancellation of these stocks.These questions cause the judicial practice difficult.Therefore legislation should be perfect in our country.