ARTICLE XV
With a view to encouraging Chinese industries, Chinese materials are to be preferred, provided price and quality are suitable.
At equal rates and qualities, goods of British manufacture shall be given preference over other goods of foreign origin.
ARTICLE XVI
The Contractors may, with the approval of the Corporation, and subject to all their obligations, transfer or delegate all or any of their rights, powers, and discretions, to their successors or assigns.
ARTICLE XVII
As soon as this Preliminary Agreement is signed it shall be forwarded to the Government of the Republic of China for approval. When it has met with the approval of the Government of the Republic of China, a necessary Detailed Agreement shall be made embodying the principles of this Agreement with such amplifications and additions as may be mutually agreed upon between the parties hereto.
ARTICLE XVIII
On its approval of this Agreement, and acceptance of the obligations set forth herein, the Government of the Republic of China shall officially notify the British Minister at Peking of the fact, and this approval shall be taken as covering the Detailed Agreement referred to in Article 17.