SIIC Environment : Signed Upgrading, Tariff Increasing, Expansion and Deodorization Agreements of 1,450,000 tonnes Projects, 45,000 tonnes Projects Commenced Commercial Operation

The Singapore Exchange Securities Trading Limited (the "SGX-ST"), Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited (the "Hong Kong Stock Exchange") 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.

SIIC ENVIRONMENT HOLDINGS LTD.

上海實業環境控股有限公司*

(Incorporated in the Republic of Singapore with limited liability)

(Hong Kong stock code: 807)

(Singapore stock code: BHK)

SIIC Environment Signed Upgrading, Tariff Increasing, Expansion and

Deodorization Agreements of 1,450,000 tonnes Projects, 45,000 tonnes Projects Commenced Commercial Operation

This announcement is made by SIIC ENVIRONMENT HOLDINGS LTD. ("SIIC Environment" or the "Company", together with its subsidiaries, the "Group"), a water treatment and environmental protection company listed on the Mainboard of the SGX-ST and the Main Board of the Hong Kong Stock Exchange on a voluntary basis, so as to keep shareholders and potential investors of the Company informed of its latest business developments.

The Group is pleased to announce that the Company has signed a tariff increasing agreement of 25,000 tonnes Wastewater Treatment Plant ("WWTP") Project in Linhai, Zhejiang Province and signed various upgrading, expansion and deodorization agreement of 1,425,000 tonnes projects in Harbin City as well as a total of 45,000 tonnes WWTPs have commenced commercial operation in Heilongjiang Province, the People's Republic of China (the "PRC").

1,450,000 tonnes WWTP Projects Signed Agreement in Zhejiang and Heilongjiang Province

The Company's indirect wholly-owned subsidiary, SIIC Environment (Taizhou) Water Treatment Co., Ltd (上實環境（台州）污水處理有限公司), has signed a tariff increasing agreement of Zhejiang Province Chemical Raw Material Site Linhai Park WWTP Project ("Linhai Project") with the People's Government of Linhai. Linhai Project has a designed capacity of 25,000 tonnes per day with discharge standard as CODcr and ammonia nitrogen applied to Class I and others applied to Class II. The water tariff increase from RMB7 per tonne to RMB9.44 per tonne or RMB11.57 per tonne according to the nature of sewage.

The Company's indirect 57.9687%-owned subsidiary, Longjiang Environmental Protection Group Co., Ltd (龍江環保集團股份有限公司) has signed four agreements with the Bureau of Housing and Urban-Rural Development of Harbin City. Details are as follows:

1. Signed an expansion agreement of the Harbin City Wenchang WWTP Project (Upgrade) ("Wenchang Upgrade Expansion Project"). Wenchang Upgrade Expansion Project has a designed capacity of 50,000 tonnes per day. The discharge standard as Class I Standard A and water tariff is priced at RMB2.581 per tonne.
2. Signed an upgrading agreement of the Harbin City Wenchang WWTP Project (Upgrade) ("Wenchang Upgrading Project"). Wenchang Upgrading Project has a designed capacity of 650,000 tonnes per day. The discharge standard will be upgrading from Class I Standard B to Class I Standard A and water tariff of the upgrading part is priced at RMB0.685 per tonne.
3. Signed deodorization agreements of Harbin City Wenchang WWTP Project ("Wenchang Deodorization Project") and Harbin City Taiping WWTP Project ("Taiping Deodorization Project") respectively. The agreement state that emission standard for odor pollutants will be Grade 2. Wenchang Deodorization Project has a designed capacity of 325,000 tonnes per day and water tariff for deodorization is RMB0.1037 per tonne. Taiping Deodorization Project has a designed capacity of 325,000 tonnes per day and water tariff for deodorization is RMB0.0901 per tonne.

The Company's indirect 57.9687%-owned subsidiary, Harbin Pingyi Longjiang Environmental Protection Water Treatment Co., Ltd, has signed an upgrading supplementary agreement of Harbin City Pingfang Wastewater Treatment Plant ("Pingfang Project") with the Bureau of Housing and Urban-Rural Development of Harbin City. The upgrading construction of Pingfang Project divided into two phases, with a total designed capacity of 150,000 tonnes per day. Based on the agreement, the recent phase has a designed capacity of 75,000 tonnes per day. The discharge standard will be upgraded from Class I Standard B to Class I Standard A and the water tariff of upgrading part is priced at RMB1.327 per tonne.

45,000 tonnes WWTP Projects have commenced commercial operation in Heilongjiang

Ningan City WWTP Project ("Ningan Project"), has completed upgrading with designed capacity of 20,000 tonnes per day and commenced commercial operation retrospectively since December 6, 2019. Ningan Project applied discharge standard as Class I standard A and water tariff is priced at RMB2 per tonne.

Ningan City WWTP Reconstruction and Expansion Project ("Ningan Expansion Project") has a

designed capacity of 15,000 tonnes per day and has commenced commercial operation retrospectively

since December 6, 2019. Ningan Expansion Project applied discharge standard as Class I standard A

and water tariff is priced at RMB2 per tonne.

Bayan County Xinglong Town Wastewater Treatment Plant Project ("Bayan Project") has a

designed capacity of 10,000 tonnes per day and has commenced commercial operation retrospectively

since July 18, 2019. Bayan Project applied discharge standard as Class I standard A and water tariff

is priced at RMB9.1627 million per year.

Above mentioned projects are expected to contribute to the Group's performance positively going

forward.

For investor relations inquiries, please contact [e-mail].

By Order of the Board

SIIC Environment Holdings Ltd.

Mr. Xu Xiaobing

Executive Director

Hong Kong and Singapore, 25 September 2020

As at the date of this announcement, the non-executive Chairman is Mr. Zhou Jun; the executive Directors are Mr. Feng Jun, Mr. Xu Xiaobing, Mr. Yang Jianwei, Mr. Huang Hanguang and Mr. Zhao Youmin; and the independent non-executive Directors are Mr. Yeo Guat Kwang, Mr. An Hongjun and Mr. Zhong Ming.

• For identification purpose only