Amazing how the lawyers jumped on this before ANV made an annoucement.

Apparently it's not friendly. ANV Management put out this:

Concerns with China Gold Stone

--  Together with its advisors, Allied Nevada has not been able to find any
    substantive published information on China Gold Stone and cannot
    substantiate the credibility of the Proposal. 
    
--  There is no public information available to indicate that China Gold
    Stone has the financial resources to complete the proposed transaction. 

Concerns with the Alleged Proposal

--  Contrary to the Announcement, No Tender Offer has Been Commenced. 
    
    --  Pursuant to US federal securities laws, a tender offer commences
        upon the filing of a Schedule 14D-1 with the Securities and Exchange
        Commission ("SEC") and no such filing has been made. 
        
--  The Announcement indicates an expiry date of January 24, 2014, which is
    contrary to U.S. and Canadian securities law. 
    
--  The Proposal is non-binding, and does not provide any certainty or
    commitment to proceed with a transaction. 
    
--  The Proposal is subject to due diligence and is conditioned upon
    execution of definitive agreements.