Confusion about tender offer definition under Vietnamese law

Under Vietnam securities regulations, the legal requirement on tender offer in acquisition of shares in a public joint stock company (the target company) will be triggered in one of the following circumstances:

a.            Circumstance 1: An offer to purchase voting shares which results in the ownership of 25% or more of the outstanding voting shares of the target company;

b.            Circumstance 2: Any organization or individual together with its related persons holding 25% or more of the voting shares in the target company purchasing further (mua tiếp) 10% or more of the outstanding voting shares of the target company;

c.            Circumstance 3: Any organization or individual together with its related person holding 25% or more of the voting shares in the target company purchasing further 5% to less than 10% of the outstanding voting shares of the target company within 1 year from the completion of the previous tender offer; and

d.            Circumstance 4: Any organization or individual having intention to conduct a tender offer.