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Verification by the Statutory Auditors Unit GRI Standards 2012 2013 2014 2015 2016 2017 2018

SECTION Limited assurance

Reasonable assurance

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Percentage of water re-used after treatment x % 303-5 23 20 20 19 19.5 21.5 22.8

Percentage of sludge re-used x % 306-2 71 63 68 73 75 74 61%

Production of electrical power xx GWh 302-1 NC 102 209 184 206 302 300

Production of thermal power xx GWh 302-1 NC 149 287 280 397 521 379

WASTE COLLECTION SERVICES

Number of inhabitants receiving collection services Nb 102-7 49,292,436 52,276,940 36,216,532 33,945,986 33,724,081 32,387,155 32,730,509

Number of industrial and commercial customers receiving collection services Nb 102-7 466,275 417,349 410,077 400,227 397,922 367,717 290,731

Total tonnage of waste collected, excluding subcontractors T 306-2 - - - - 28,372,527 29,019,746 25,507,543

Total tonnage of household and similar waste collected T 306-2 11,582,456 10,507,863 9,629,682 10,074,889 9,233,408 9,491,322 8,835,887

Total tonnage of medical waste collected T 306-2 159,954 149,847 134,704 134,992 149,018 135,699 110,432

Total tonnage of industrial and commercial waste collected T 306-2 14,002,761 11,988,467 11,425,490 10,617,434 11,203,284 10,503,556 10,732,696

Tonnage of hazardous waste collected T 306-2 1,186,878 1,083,568 1,186,399 1,083,570 1,688,645 2,861,019 1,086,040

Tonnage of other waste collected (mixed household and industrial, construction) T 306-2 - - - - 6,098,171 6,028,150 4,742,488

Total tonnage of waste collected by subcontractors T 306-2 - - - - 11,892,941 14,241,220 17,505,475

Total number of waste collection, cleaning, and wastewater treatment trucks Nb N/A 12,174 12,545 12,271 11,967 11,448 11,458 11,487

Percentage of the truck fleet running on alternative fuels % N/A 4.7 2.9 8 11 8.78 3.20 3.84

Average diesel fuel consumption per truck m3/nb 302-3 14.6 15 14.2 14.9 9.25 15.81 13.06

Average diesel fuel consumption per tonne collected (excluding subcontractors) L/t 302-3 7.4 6.7 7.5 6 3.8 6.23 9.58

Average diesel fuel consumption per tonne collected (including subcontractors) L/t 302-3 - - - - 5.91 5.4 6.3

SORTING AND RECYCLING ACTIVITIES

Number of sites operating as transfer stations Nb 102-7 270 385 332 336 319 345 318

Number of sites operating in sorting/recycling Nb 102-7 373 349 362 356 473 466 478

Tonnage of recovered materials from sorting centres x T 306-2 8,781,841 8,568,410 7,954,843 10,468,000 10,377,442 10,239,066 10,525,301

Quantity of raw materials from recycling x T 306-2 NC 3,500,000 4,101,701 4,707,664 3,948,011 4,270,061 4,393,498

COMPOSTING ACTIVITIES

Number of composting facilities Nb 102-7 128 123 127 121 107 104 101

Incoming tonnage T 306-2 2,081,652 2,209,965 2,041,291 1,786,805 2,222,970 2,241,462 2,005,261

Tonnage of compost produced T 306-2 847,401 901,538 916,963 853,797 792,079 858,840 832,005

Tonnage of sewage sludge treated for material recovery T 306-2 573,197 569,970 513,281 120,413 121,888 206,512 180,659

NON HAZARDOUS WASTE THERMAL TREATMENT ACTIVITIES

Number of urban waste incineration plants Nb 102-7 48 46 44 45 40 45 47

Tonnage of waste incinerated T 306-2 6,662,964 6,225,817 6,762,114 6,975,291 7,049,368 8,011,435 8,312,144

SOx emissions x T 305-7 385 297 344 398 422 471 428

NOx emissions x T 305-7 4,291 3,894 4,126 4,342 4,378 4,979 5,303

Mercury emissions T 305-7 - 0.177 0.277 0.245 0.225 0.209 0.448

Dust emissions T 305-7 45 53 56 52.16 57.02 49.86 51.78

Quantity of air pollution control residues T 306-2 299,317 278,946 207,920 216,373 212,177 240,256 241,026

Percentage of bottom ash recovered x % 306-2 90 96 84 88 77 76 88

Quantity of electrical energy generated xx MWhe 302-1 2,862,674 2,704,202 2,789,228 3,066,185 3,179,385 3,586,740 3,784,149

Quantity of thermal energy sold xx MWhth 302-1 1,960,373 1,942,843 1,971,686 2,360,104 2,330,205 2,541,819 2,990,877