avo 3b

Can anyone make out what they are saying? And why no sustantial share holders statment for DIO?

"Up to a further 6,127,708 shares in excess of the
number referred to in Avoca’s Appendix 3B
dated 11 May 2009, bringing the total to up to
41,823,458, being the maximum number of
shares to be issued to acquire Dioro Exploration
NL fully paid shares (on a fully diluted basis but
not including the 14.95% of Dioro Shares already
owned by Avoca) under the Company’s off
market takeover offer as set out in the Bidder’s
Statement dated 5 May 2009 and the First
Supplementary Bidder’s Statement dated 6 July
2009 (plus any additional shares to be issued as a
result of the rounding provisions in clause 2(c) of
Avoca’s offer terms)".

"UP TO" a further 6,127,708? they either have this number or not.
Please call me stupid,but could someone explain why a 3b is so vague.
Regards