Aytos

Vimax Klima (franchise)

Aytos
11 Bogoridi Str
e: aitos@vimax.bg
www.vimax.bg

Blagoevgrad

Temp Service Ltd

Blagoevgrad
40 Treti Mart Str. Ground floor
t: 0888 / 978 953
e: clima@mail.bg

Blagoevgrad

Mega Electronics AP Ltd

Blagoevgrad
24 Kiril i Metodiy Blvd
t: 0893 01 32 11
e: office_bl.grad@megaelectronics.bg
www.megaelectronics.bg

Botevgrad

Declima Ltd

Botevgrad
26 Tsar Osvoboditel Blvd
t: 0889 79 31 55
e: declima2020@gmail.com

Burgas

Omega plus Ltd

Burgas
74 Stefan Stambolov Blvd
t: 056 / 800 640; 0887 / 340 034
e: omegaplus@abv.bg
www.omegaplus.bg

Vadik Ltd

Burgas
t: 056 81 90 96, 0888 72 44 46
e: vadik.eood@abv.bg

Vimax Klima

Burgas
residential complex Lazur, bl. 160
t: 056 / 590 170; 0887 / 449 923
e: burgas@vimax.bg
www.vimax.bg

Mega Electronics AP Ltd

Burgas
128 Demokratsiya Blvd. (residential complex Lazur bl. 128)
t: 0893 618 985
e: office_burgas@megaelectronics.bg
www.megaelectronics.bg

Stoilov Ltd

Burgas
33 Pirotska Str
t: 0885 94 36 46
e: stoilovi_eood@abv.bg

Varna

Bioklima AR Ltd

Varna
Chaika quarter, bl. 27
t:  052 / 302 363; 0888 / 859 734
e: bioklima@mbox.contact.bg

Vimax Klima

Varna
76-78 Slivnitsa Blvd
t: 052 / 606 636; 0893 493 892
e: krasimir.georgiev@vimax.bg
www.vimax.bg

Deimos Correct Ltd

Varna
18 Hristo Botev Blvd. – Fullmax Shopping Center
т: 052 / 744 044; 0896 / 687 726
e: office@deimoscorrect.com
www.deimoscorrect.com

OH Miro Ltd

Varna
Prof. N. Derzhavin 15
t: 052 / 610 016; 0886 / 144 553
e: sales@oxm.bg
www.oxm.bg

Mega Electronics AP Ltd

Varna
62 General Kolev Str.
t: 0893 618 980
e: office_varna@megaelectronics.bg
www.megaelectronics.bg

Chernev Klima Service Ltd

Varna
8-mi Primorski Blvd
t: 089 7 772 772 /  0700 16 7 16
e: shop@chernevclima.bg
www.chernevclima.bg

Bulpro Ltd

Varna
27 Debar Str
t: 0888 956 936
e: office@bulpro.eu
www.bulpro.eu

Satex Ltd

Varna
Ruse Street 57
t: 0887 87 34 00
e: varna@satex.bg
http://www.satex.bg

Vakarel

N S Energy Ltd

village of Vakarel
5 Cheshma Angelina Street
e-mail: georrgiev@abv.bg
t.: 0888 735 987

Veliko Tarnovo

Klima Comfort Ltd

Veliko Tarnovo
Kozloduy Street № 8
t: 0898 / 677 533; 0887 / 878 036
e: klimacomfort@mail.bg

Klima Consult Ltd

Veliko Tarnovo
6 Kozloduy Street
t: 0884 55 65 75; 0898 450963
е: кlima_konsult@abv.bg

Technoservice Ltd. (Vimax Klima – franchise)

Veliko Tarnovo
16 Todor Balina Str.
t: 062 690 009, 0878 326 085
е: veliko.tarnovo@vimax.bg
www.vimax.bg

Mega Electronics AP Ltd.

Veliko Tarnovo
3N Poltava Street
t: 0895 561 319
е: office_vt@megaelectronics.bg

Vidin

Technocom Ltd

Vidin
Tsar Ivan Asen II Street № 7
t:  094 / 606 454; 0899 / 924 048
e: technocom@abv.bg

Bio-home engineering Ltd

Vidin
80 Tsar Alexander II Str.
t:  094 / 601 604; 0888 765 249
e: bioengin@abv.bg

Mega Electronics AP Ltd

Vidin
85 Tsar Simeon the Great Str
t:  094 606 476
e: office_vidin@megaelectronics.bg
www.megaelectronics.bg

Mi Systems Ltd

Vidin
zh.k. Panonia, bl.2, entrance A, floor 0
t: 0894 20 70 94, 0885 87 57 04
e: misistems@gmail.com
www.misistems.com

VILI COM Ltd

Vidin
56 Hristo Botev Str.
t: 094 601 474, 0888 23 56 32
e: vili_com@abv.bg
http://www.vilicom-bg.com/

Vratsa

Domklima Vratsa Ltd

Vratsa
10 Ilinden Street
t: 092 666 025, 0898 55 37 22
е: valentin_mitov@mail.bg
www.domklima-bg.com

Vimax Klima (franchise)

Vratsa
41 Georgi S. Rakovski Str
t:  0889 988 825
е: vraca@vimax.bg
www.vimax.bg

Gabrovo

Topklima 2010 Ltd

Gabrovo
39 Mogilev Blvd
t: 0896 77 10 77
e: penev6@abv.bg

Domklima – Energy Saving Solutions Ltd

Gabrovo
26 Aprilov Blvd. (opposite the visor)
t: 0898 560 037 / 0878 650 548
e: domklima@gmail.com

MMC Klimatizatsiya Ltd

Gabrovo
16 Zelena Livada Str
t: 0896 44 72 52/ 0898 73 08 58
e: mmc_klima@abv.bg

Dupnitsa

S&R Ltd.

Dupnitsa
zh.k. Elitsa
t: 0878 820 008
е: sr_airconditioning@yahoo.com

Mega Electronics AP Ltd

Dupnitsa
13 Patriarch Evtimiy Str.
t: 0895 561 318, 0701 99 792
е: office_dupnica@megaelectronics.bg
www.megaelectronics.bg

Elin Pelin

N S Energy Ltd

Elin Pelin
1 Nikola Petkov  Str.
e-mail: georrgiev@abv.bg
t: 0888 735 987

Ihtiman

N S Energy Ltd

Ihtiman
5 General Shuvalov Str.
e-mail: georrgiev@abv.bg
t.: 0888 735 987

Karnobat

Vimax Klima (franchise)

Karnobat
36 Georgi Dimitrov Str.
t: 0877 894 469
е: karnobat@vimax.bg
www.vimax.bg

Kazanlak

Vimax Klima

Kazanlak
6 Lyubomir Kabakchiev Str.
t: 0431 62 414, 0888 962 738
е: vimax.kazanlak@gmail.com
www.vimax.bg

Knezha

Ve-Ru Klima Ltd.

Knezha
64 Raina Knyaginya Str.
т: 0897 496 555
е: ve_ru_klima@abv.bg

Kardzhali

Vimax Klima

Kardzhali
7 Otets Paisiy Str.
t: 0361 620 10, 0888 807 022
е: kardzhali@vimax.bg
www.vimax.bg

Kozloduy

Vent Group Ltd

Kozloduy
bl.7, Office – shop 7
t: 0876505650
е: ventgroup@abv.bg
http://ventgroup.eu

Lom

Microtech Rosen Georgiev ET

Lom
2 Pristanishtna Str.
t: 0971 66 893, 0888 25 77 53
е: microtech@abv.bg

Lovech

Frigoclim Ltd.

Lovech
19 Byalo More Str.
t: 0887 87 44 41
е: frigoclim@abv.bg

Lovech

SRI Ltd

Lovech
S. Saev ”№ 15
t: 0877934473
е: lovech@sri-host.com
https://сри.бг

Montana

Global Klima Ltd

Montana
143 Hristo Botev Str.
t: 096 300 185, 0888 741 901
е: global.clima@abv.bg

Vimax Klima (franchise)

Montana
3 Tsar Boris III Str.
t: 0883 404 494
е: montana@vimax.bg
www.vimax.bg

POLY EXTREME LTD

Montana
Blvd. Treti mart № 95
t: 0887 55 87 87, 0885 012349
е: pollyextremeair@gmail.com
https://pollyextreme.com

Pazardzhik

Mega Electronics AP Ltd

Pazardzhik
8 Plovdivska Str.
t: 0898 77 61 24
е: office_pz@megaelectronics.bg
www.megaelectronics.bg

Vimax Klima (franchise)

Pazardzhik
77 Georgi Benkovski Blvd
t: 0887 665 882
е: pazardzhik@vimax.bg
www.vimax.bg

HomeMart Ltd

Pazardzhik
12 Konstantin Velichkov Str.
t: 0882 10 50 60, 0882 10 50 70
е: homemart.bg@gmail.com
www.homemart.bg

Pernik

Plamen Dochev Ltd.

Pernik
Tvardi Livadi 7/1 opposite Technopolis
t: 0879 324 666, 0888 250 554
е: pd771@abv.bg
www.climaticipernik-bg.com

Petrich

Vivas Nurkov Ltd.

Petrich
44 Bulgaria Str.
t: 0878 32 03 25
е: vivas.nurkov@abv.bg

Mega Electronics AP Ltd.

Petrich
10 Hristo Botev Str.
t: 0893 618 982, 0884 150 893
е: office_petrich@megaelectronics.bg
www.megaelectronics.bg

Top Klima Ltd

Petrich
1A Skopie Str.
t: 0745 6 02 19, 0887 268 901
е: top_klima2001@abv.bg

Pleven

Velev Klima Ltd.

Pleven
18 Panega Str.
t: 0899 955 051
е: velev.klima@gmail.com
www.klimatici-pleven.com

Eurolux – 99 Ltd.

Pleven
171 Georgi Kochev Str.
t: 0700 18 338, 0878 62 90 56
е: office@technoarena.bg
www.technoarena.bg

Mega Electronics AP Ltd.

Pleven
29 San Stefano Str.
t: 0893 618 977
е: office_pleven@megaelectronics.bg
www.megaelectronics.bg

SRI Ltd.

Pleven
36 Hristo Botev Blvd.
t: 0878833391
е: office@sri-host.com

Plovdiv

Vimax Klima

Plovdiv
86 Vasil Aprilov Blvd.
t: 032 815 181, 0879 442 666
е: plovdiv@vimax.bg
www.vimax.bg

Vimax Klima

Plovdiv
Osvobozhdenie Blvd., bl. 173 (Gerbera complex)
t: 032/595 677 ; 0879/802 002
е: plovdiv@vimax.bg
www.vimax.bg
http://www.klimaticiplovdiv.eu/

Air Logistics Ltd.

Plovdiv
35 Mali Bogdan Str.
t: 0888 602 452, 0888 633 395
е: shterev.aleksandar@gmail.com
www.airqualitybg.com

Interfrigo Engineering Ltd.

Plovdiv
17 Hristo Chernopeev Str.
t: 032 66 03 93, 0888 59 79 54
е: krasimira67@abv.bg

Klimakontrol Ltd

Plovdiv
Marasha, 1 Anton Strashimirov str.
t: : 0885 333 873, 0887 772 133
е: plovdiv@klimacontrol.com
www.klimacontrol.com

Marcy PKM Ltd.

Plovdiv
57 Osvobozhdenie Blvd.
t: 032 588 069, 0888 379 788
е: marsi_pkm@abv.bg
www.marsi-pkm.bg

Mega Electronics AP Ltd.

Plovdiv
138 Hristo Botev Str.
t: 0893 61 89 81
е: office_plovdiv@megaelectronics.bg
www.megaelectronics.bg

Razgrad

MSM Ltd.

Razgrad
5 Osvobozhdenie, apartment 3
t: 0895 649 428
е: airmiro@mail.bg

Klima Style Ltd.

Razgrad
28 Dunav Str.
t: 084 660 700, 0878 971 356
е: klimastilood@gmail.com

Ganchevi Brothers Ltd.

Razgrad
3 Centaur Str.
t: 084/661464, 0878/644873
е: bratia_ganchevi@abv.bg
www.ganchevi.bg

Dobrev Invest Ltd.

Razgrad
1 Ilindensko Vastanie Str.
t: 0876611949
www.dobrevinvest.eu

Ruse

Vladi Klima Ltd.

Ruse
14 Slavyanski Blvd.
t: 082 824 132, 0888 48 96 49
е: vladiklima@abv.bg
www.klimaticiruse.com

Cameo Ltd.

Ruse
34 Vidin Str.
t: 082 873 029, 0885 45 33 18
е: cameo_ltd@abv.bg
www.cameo.bg

Mega Electronics AP Ltd.

Ruse
2 Pliska Str.
t: 0893 645 720
е: office_ruse@megaelectronics.bg
www.megaelectronics.bg

Victor Electric Plus Ltd.

Ruse
13 Saedinenie Blvd.
t: 0898 63 65 94, 082 872 274
е: velektrik@abv.bg
www.viktorelektrik.com

Victor Electric Plus Ltd.

Ruse
21 Knyazheska Str.
t: 082 872 274, 0898 63 65 94
е: velektrik@abv.bg
www.viktorelektrik.com

Sandanski

Vivas Nurkov Ltd.

Sandanski
10 Seres Blvd
t: 0878 32 03 25
е: vivas.nurkov@abv.bg

Shalamandovi Ltd

Sandanski
80 Stefan Stambolov Str.
t: 0899 197 304
www.shalamandovi.com

Svishtov

Technoindustry Ltd.

Svishtov
18 Treti Mart Str.
t: 0898 449 903, 0886 588 742
е: technoindustrybg@yahoo.com

Nice – M Ltd

Svishtov
106 Tsar Osvoboditel Str.
t: 0889 569 826
e: nice_sv@abv.bg

Silistra

Chernev Klima Service Ltd.

Silistra
31 Petar Boyadzhiev Str.
t: 086 / 83 66 99; 0895 / 412 432;  0700 16 7 16
e: chernevclima@gmail.com
www.chernevclima.bg

Smolyan

Smolyan Klima Ltd.

Smolyan
19 Natalia Str.
t: 0878 58 16 16
e: smolyanklima@gmail.com

Sliven

Bioelectric Ltd.

Sliven
1 Buxton Str.
t: 044 66 25 86, 0888 593 549
e: bio_bg@yahoo.com

Mega Electronics AP Ltd.

Sliven
Vasil Levski Square, bl. 5
t: 0895 503 792, 0700 800 06
e: office_sliven@megaelectronics.bg
www.megaelectronics.bg

DITOLIA Ltd

Sliven
29 Hadji Dimitar Blvd
t: 0879500088 ,0878150020
е: ditolia@abv.bg

Darts Electronics-Klima Ltd.

Sliven
4 G. Danchev Str.
t: 0878400766, 0876852582
е: office@dartsclima.com
https://dartsclima.com/

Sofia

Emco Ltd.

Sofia
zh.k. Bokar
t: 02 958 23 94, 0899 933 600
е: emco_ltd@abv.bg
www.emko.bg

EPITER Ltd

Sofia
zh.k. Tolstoy, bl. 35
t. 0886531612; 0878782008
е: epiteret@abv.bg
www.epiter.eu

Zephyr-air conditioning systems Ltd

Sofia
Lyulin, 2 722 Str.
t: 02 925 22 66, 0884 688 551
е: office@zephyr-clima.com
www.zephyr-clima.com

Multiclimat Engineering Ltd.

Sofia
247 Botevgradsko shose Blvd
t: 02 943 15 28, 0888 700 510
е: ekomatik@mail.bg

Mega Service Center Ltd.

Sofia
St. Cyprian Str, bl. 280
t: 0888 627 879, 0878 921 530
е: info@powerclima.com
www.powerclima.com

NSKlima Ltd

Sofia
73 Sredna Gora Str.
t: 02 442 53 54 , 0888 860 060
е: hcklima@mail.bg
www.hcklima.com

Veni Klimat Ltd.

Sofia
Al. Stamboliyski 186, bl.10
t: 02 828 92 16, 0898 60 40 60
е: veni.climat@gmail.com
www.veni-climat.com

Vimax Klima

Sofia
residential complex Mladost 2, bl. 262, shop D
t: 0700 14 711, 02 875 90 00, 0894 668 288
е: sales@vimax.bg
www.vimax.bg

Vimax Klima

Sofia
residential complex Serdika, 15 Sini vir Str.
t: 02/ 468 3032
е: sales@vimax.bg
www.vimax.bg

Vimax Klima

Sofia
residential complex Lozenets, 11 Arsenalski Blvd.
t: 02/ 868 0572; 0898 772 771
е: sales@vimax.bg
www.vimax.bg

Vimax Klima

Sofia
146 Slivnitsa Blvd
t: 02/ 831 0113; 0885 001 247
е: sales@vimax.bg
www.vimax.bg

Vimax Klima

Sofia
residential complex Lyulin 3,
Georgi Drazhev str., Block 388 store 1
t: 02/ 995 0992; 0877 156 683
е: sales@vimax.bg
www.vimax.bg

Vimax Klima

Sofia
residential complex Malinova Dolina, 105A Kliment Ohridski Blvd
t: 02/ 831 01 13
е: sales@vimax.bg
www.vimax.bg

ALIMAR KLIMA Ltd

Sofia
Mladost 4,Dr. Atanas Moskov Str.
bl. 425, ent. 3, Shop №4
t: 02 418 62 02, 0897 01 59 90
е: office@alimarklima.com
www.alimarklima.com

IV KLIMA Ltd

Sofia
zh.k. Ovcha Kupel 1
t: 0888820204 ; 0888669962
е: ivclima@abv.bg
www.ivclima.eu

Klimaset Ltd.

Sofia
24 Hubcha Str.
t: 02 444 42 16, 0889 360 767
е: office@climaset.net
www.climaset.net

Frostklima MB Ltd.

Sofia
zh.k. Darvenitsa, 20 Andrey Lyapchev Blvd., shop 2
t: 02 483 04 64, 0884 135 144
е: klimafrost@abv.bg
www.klimafrost.com

Klimakontrol Ltd

Sofia
residential complex Mladost 1, bl. 54B, shop 1
t: 0885 33 38 73 ; 0886 60 45 24
е: office@klimacontrol.com
www.klimacontrol.com

Mega Electronics AP Ltd.

Sofia
Sofia 14-16 Atanas Uzunov Str.
t: 0700 80 006
е: office_sofia2@megaelectronics.bg
www.megaelectronics.bg

Fight Klima Ltd.,

Sofia
Orlandovtsi quarter, 50 Hristo Batandjiev Str.
t: 02 839 39 97
е: faitclima@gmail.com

Royal Electronics Ltd.

Sofia
9 Andrey Lyapchev Str. (Entrance from 49 Kanarche Str.)
t: 088 871 00 61, 088 528 18 18
е: petia@royal.bg
www.toplo.eu

Klimaset Ltd

Sofia
24 Hubcha Str.
t: 02 444 42 16, 0889 360 767
е: office@climaset.net
www.climaset.net

Klima Technik Ltd

Sofia
19 Tvardishki Prohod Str
t: 02 995 15 99, 0886 933 399
е: info@climabg.com
www.climabg.com

Avant-garde Energy Systems Ltd

Sofia
155 Geo Milev Str.
t: 02 495 44 55, 0888 92 99 93
е: info@avangardni.com
www.avangardni.com

PERFECT CLIMA Ltd.

Sofia
Al. Stamboliyski ”№ 182 bl. 1 Ground floor
t: 0888604166; 02/8392456
е: showroom@perfectclima.com
www.perfectclima.com

Chernev Klima Service Ltd

Sofia
34A Ovcha Kupel Blvd
t: 0894 388 576 /  0700 16 7 16
е: sofia@chernevclima.com
www.chernevclima.bg

SUPERCLIMA BG Ltd.

Sofia
Hadji Dimitar, bl.55G, entrance B – Ground floor
t: 02/9479362 и 0888/456258
е: info@superclimabg.com
www.superclimabg.com

MIKAR EOOD

Sofia
zh.k. Krasno Selo, bl. 194, shop 4
t: 02/ 8504075
е: mikar@mail.bg
www.mikarclima.com

Sofiaklima-BG Ltd

Sofia
GM Dimitrov Blvd., block 38
t: 02/9624299; 0884996027; 0894471343
www.sofiaclima.com

Klima Consult Ltd

Sofia
1 Todor Kableshkov Blvd
t: 02 / 955 75 39, 0888 806 010
е: bizov@climaconsult.com
www.climaconsult.com

EUROCLIMA Ltd

Sofia
23 Sitnyakovo Blvd
t: 0893 415 374; 0895 415 374
http://euroclima-bg.com/

Fluid 62 Ltd

Sofia
2 Prof. Georgi Bradistilov Str.
t: 0888126544 ;02/8268373
е: office@fluid62.com
https://fluid62.com/

Diona-K Ltd

Sofia
Obelya Quarter, 12, No. 4 / service base, Vrazhdebna Quarter, 46, No. 6
t: 089579193
е: diona_k@abv.bg

Mr. Klimat Ltd

Sofia
57 Tsaritsa Yoana Blvd. (next to Lyulin metro station)
t:  02/483 60 90, 0884 474 040, 0899 806 319
е: office@mr-climate.com
www.mr-climate.com

M&V Klima Ltd.

Sofia
residential complex Razsadnika, Vazkresenie Blvd., bl. 87, to ent. 8
t:  02 822 20 01, 0898 434 438
е: martti_millanov@abv.bg

Impas-Klima Ltd

Sofia
51A Sitnyakovo Blvd.
t: 02 46 82 922 ; 0885 783 565
е: office@impas-klima.com
www.impas-klima.com

Bogorex-TM Ltd.

Sofia
Arsenalski Blvd. 69 fl.1
t: 02 963 20 40, 0888 502 999
е: office@bogorex.com
www.bogorex.comwww.bogorex.eu

Alaska 2000 ET

Sofia
zh.k. Gotse Delchev, bl.14, ent. B
t: 02 945 01 01, 0889 107 309
е: office@alaska2000.com
www.alaska2000.com

Aspen 9000 Ltd.

Sofia
Darvenitsa, 1 Yana Str., Office 14
t: 02 874 60 90, 0887 614 509
е: rumor@abv.bg

Stara Zagora

Climate Comfort Engineering 2010

Stara Zagora
6 Bratya Zhekovi Str.
t: 042 633 644, 0879 93 93 40
www.kki.bg

N Pole Ltd.

Stara Zagora
22 Edirna Epopeya Str
t: 042 672 272, 0898 292 435
е: npole@abv.bg
www.npole-klima-com

SEN HOLDING Ltd.

Stara Zagora
10 Ruski Blvd.
t: 0896 97 33 89, 0888 55 50 60,
е: office@serviz-klimatici.com
www.serviz-klimatici.com

Troyan

Termklima Ltd

Troyan
171 Simeon Veliki Str.
t: 0877 678595 ; 0877 678575
е: thermclima@abv.bg

Stoilov Ltd.

Troyan
170 Hristo Botev Str.
t: 0888 62 44 64, 0882 66 63 63
е: stoilovi_eood@abv.bg

Targovishte

Radevi Ltd.

Targovishte
30 Paisiy Str.
t: 0895 23 73 03
e: serviz_radevi@abv.bg
www.radevi-clima.com

Mega Electronics AP Ltd.

Targovishte
4 Episkop Sofroniy Str.
t: 0893 013 338, 0700 800 06
e: office_targovishte@megaelectronics.bg
www.megaelectronics.bg

Vichev Ltd.

Targovishte
12 Troyan Str.
t: 0898 52 67 62
e: tenev80@abv.bg

Haskovo

Bulgaz Ltd.

Haskovo
140 Bulgaria Blvd.
t: 038 666 007, 0878 70 91 91
е: bulgas@bulgas.com
www.bulgas.com

Vimax Klima

Haskovo
14A Osvobozhdenie Blvd.
t: 038/ 620 303; 0889231471
е: haskovo@vimax.bg
www.vimax.bg

Shumen

Radevi Ltd.

Shumen
46 Simeon Veliki Blvd.
t: 0895 53 79 69
е: serviz_radevi@abv.bg
www.radevi-clima.com

Satex Ltd.

Shumen
25 Simeon Veliki Blvd.
t: 054 831 060, 0889 873 400
е: office@satex.bg
www.satex.bg

Bulpro Ltd.

Shumen
29 Vasil Levski Str.
t: 0888 956 936
е: office@bulpro.eu
www.bulpro.eu

Yambol

TECHNIKA BG – GROUP EOOD

Yambol
67 Graf Ignatiev Str. (Opposite Kaufland)
t: 046 666 888, 0888 90 59 59
е: sales@technika.bg
www.technika.bg

Contact J Ltd

Yambol
2 Drama Street
t: 0888 472 642
е: contact.jambol@gmail.com

North Macedonia

Uni 24 DOOEL

Shtip, Macedonia 15/24 JHA Blvd.
t: +389 70 459 140, +389 70 210 524
е: contact@uni24.com.mk
www.uni24.com.mk