EXHIBIT 99.1
JOINT FILING AGREEMENT
We, the signatories of this Statement on Schedule 13G to which this Agreement is attached, hereby agree that such Statement is, and any amendments thereto filed by any of us will be, filed on behalf of each of us.
Dated: February 12, 2018
| Temasek Holdings (Private) Limited | ||
| By: | /s/ Choo Soo Shen Christina | |
| Name: | Choo Soo Shen Christina | |
| Title: | Authorized Signatory | |
| Fullerton Fund Investments Pte Ltd | ||
| By: | /s/ Cheong Kok Tim | |
| Name: | Cheong Kok Tim | |
| Title: | Director | |
| Seletar Fund Investments Pte Ltd | ||
| By: | /s/ Lim Siew Lee Sherlyn | |
| Name: | Lim Siew Lee Sherlyn | |
| Title: | Director | |
| Clemenceau Investments Pte Ltd | ||
| By: | /s/ Tan Lay Khim | |
| Name: | Tan Lay Khim | |
| Title: | Director | |