Design Capital Limited — M&A Activity 2013

Apr 24, 2013

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.

KING STONE ENERGY GROUP LIMITED 金 山 能 源 集 團 有 限 公 司

(Incorporated in Hong Kong with limited liability)

(Stock Code: 00663)

ANNOUNCEMENT

This announcement is made by King Stone Energy Group Limited (‘‘the Company’’) pursuant to Rule 13.09(2)(a) of the Rules Governing the Listing of Securities (the ‘‘Listing Rules’’) on The Stock Exchange of Hong Kong Limited and the Inside Information Provisions (as defined in the Listing Rules).

The board of directors (the ‘‘Board’’) of the Company wishes to inform the shareholders of the Company and potential investors that the Company is currently negotiating with independent third parties for a possible acquisition of certain equity interest in a group of companies which are principally engaged in the exploration and exploitation of sizable silver mines (the ‘‘Possible Acquisition’’). As at date of this announcement, no definitive agreement has been entered into in relation to the Possible Acquisition. The Company will make further announcement in accordance with requirements of the Listing Rules when the Possible Acquisition materialises.

The Board wishes to emphasise that as no binding agreement in relation to the Possible Acquisition has been entered into as at the date of this announcement, there is no assurance that it will be entered into and the structure and terms of the Possible Acquisition are still subject to due diligence, negotiation and changes. As such, the Possible Acquisition may or may not proceed. Shareholders and investors are urged to exercise caution when dealing in the securities of the Company.

By order of the Board

King Stone Energy Group Limited Xu Zhendong Chairman

Hong Kong, 22 April 2013

As at the date of this announcement, the executive Directors are Mr. Xu Zhendong, Mr. Zhang Wanzhong, Mr. Tian Wenwei, Mr. Zong Hao, Mr. Xu Zhuliang and Mr. Benjamin Clark Danielson, the non-executive Director is Mr. Zhang Yongli and the independent non-executive Directors are Mr. Chiu Sui Keung, Mr. Li Peiming, Mr. Lu Binghui and Mr. Lee Ping.