Joint Filing Agreement February 14 2017

CUSIP NO. 000000000 13G Page 1 6 of 18

Exhibit 99.1

Joint Filing Agreement

February         14         2017

In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, Commonwealth Bank of Australia, Colonial Holding Company Limited, Commonwealth Insurance Holdings Limited, Colonial First State Group Limited, First State Investment Management (UK) Limited, First State Investment Managers (Asia) Limited, FSIB Ltd, First State Investments Holdings (Singapore) Ltd, and First State Investments (Singapore) each hereby agree to the joint filing of this statement on Schedule 13G (including any and all amendments hereto). In addition, each party to this Agreement expressly authorizes each other party to this Agreement to file on its behalf any and all amendments to such Statement on Schedule 13G. A copy of this Agreement shall be attached as an exhibit to the Statement on Schedule 13G filed on behalf of each of the parties hereto, to which this Agreement relates.

This Agreement may be executed in multiple counterparts, each of which shall constitute an original, one and the same instrument.

Commonwealth Bank of Australia
By:		/s/ Xxxxx Xxxxxx
Name: Xxxxx Xxxxxx
Title:   Company Secretary
Colonial Holding Company Limited
By:		/s/ Xxxxxxx Xxxxx
Name: Xxxxxxx Xxxxx
Title:   Director
Commonwealth Insurance Holdings Limited
By:		/s/ Xxxxxxx Xxxxx
Name: Xxxxxxx Xxxxx
Title:   Director
Colonial First State Group Limited
By:		/s/ Xxxxxx Xxxxxx
Name: Xxxxxx Xxxxxx
Title:   Director
First State Investment Managers (Asia) Limited
By:		/s/ Xxxxx Xxxxx
Name: Xxxxx Xxxxx
Title:   Director
FSIB Ltd
By:		/s/ Xxxxxxx Xxxxxxxxx
Name: Xxxxxxx Xxxxxxxxx
Title:   Director

CUSIP NO. 000000000 13G Page 17 of 18

First State Investments Holdings (Singapore) Limited
By:		/s/ Xxxxxxx Xxxxxxxxx
Name: Xxxxxxx Xxxxxxxxx
Title:   Director
First State Investments (Singapore)
By:		/s/ Xxxxxxx Xxxxxxxxx
Name: Xxxxxxx Xxxxxxxxx
Title:   Director