Excuse me, which company does the best in ammonia nitrogen wastewater treatment?

20 10 "green China" environmental protection enterprise selection results (water investment category)

(A), the most active water investment enterprises

1, Beikong Water Group Co., Ltd.

2. China Water Investment Co., Ltd

3. Veolia Water Group

4. Beijing Sander Environmental Protection Group Co., Ltd.

5. China Environmental Protection Water Investment Co., Ltd.

6. Sino-French Water Investment Co., Ltd

7. China Energy Conservation and Environmental Protection Group Corporation

8. Jinzhou Environment Group Co., Ltd..

9. Chongqing Water Group Co. Ltd.

10, Beijing Capital Company Limited

1 1, He Jiang Water Investment Co., Ltd.

12, Shenzhen Water (Group) Co., Ltd.

13, Tianjin Chuangye Environmental Protection Co., Ltd.

14, China Water Group Co., Ltd.

15, Shenzhen Jinxin 'an Water Group Co., Ltd.

16, Anhui guozhen environmental protection and energy saving technology co., ltd.

17, Chengdu Rongxing Group Co., Ltd.

(Remarks: The most active enterprises should consider the number, amount, shareholding, holding and sole proprietorship of the contracted enterprises in the past three years. )