Related by context. All words. (Click for frequent words.) 61 ZESA Holdings 60 Kafue Gorge 59 Zesa Holdings 59 utility Zesa Holdings 58 Matimba 58 Duvha 58 Zesa 57 ZESA 57 ZESCO 57 Chavuma 57 Morupule 57 Hwange Colliery Company 56 HCCL 56 Chitundu 56 Batoka 56 Hwange Colliery 56 Chisela 55 Engineer Ben Rafemoyo 54 utility NamPower 54 utility Zesco 54 Sable Chemicals 54 Kalulushi 54 Copperbelt Province 54 Hwange Power 54 Kafue River 54 Ngodwana 54 Mr Fullard Gwasira 54 Zimasco 53 Paulinus Shilamba 53 ZESCO Limited 53 Itezhi tezhi 53 Gcabashe 53 Hwange Thermal Power 52 Mufulira 52 Songas 52 Letlhakane mines 52 Lephalale 52 Ndola Lime 52 Hartebeesfontein 52 Eng Rafemoyo 52 #,# megawatt Medupi 52 ZISCO 52 ESKOM 52 Sindowe 52 Majuba 51 Nampower 51 Maamba 51 Tegeta 51 Nyagak 51 Tanesco 51 TANESCO 51 Wankie Colliery 51 Letsibogo 51 Chibuluma 51 Thulani Gcabashe 51 spokesperson Andrew Etzinger 51 Bwana Mkubwa 50 Koeberg Nuclear 50 spokesman Andrew Etzinger 50 parastatal Eskom 50 Cahora Bassa dam 50 Itezhi Tezhi 50 Platinum Mines Zimplats 50 Koeberg nuclear 50 Mwila Chansa 50 Mchuchuma 50 Kidatu 50 Ngezi 50 Copperbelt province 50 Zimphos 50 Hernic Ferrochrome 50 Kapiri Mposhi 50 CE Jacob Maroga 50 IPTL 50 TGME 50 Nampundwe 50 Chingola 49 Maamba Collieries 49 Usutu 49 Batoka Gorge 49 Xinavane 49 WBPDCL 49 utility Eskom ESCJ.UL 49 Sondu Miriu 49 Hwange thermal 49 Indeni refinery 49 Transnet Freight Rail 49 Kakira Sugar Works 49 Nakambala 49 Zululand Anthracite Colliery 49 Chililabombwe 49 Shilamba 49 Patratu Thermal Power 49 Mwansa Mbulakulima 48 Cahora Bassa HCB 48 RioZim 48 Mmamabula coal 48 Cahora Bassa 48 Konkola Copper Mines 48 Machadodorp 48 Foskor 48 NamPower 48 Transnet Freight Rail TFR 48 Kerawalapitiya 48 Murowa Diamonds 48 Kansanshi Mine 48 Sappi Saiccor 48 Bwana Mkubwa copper 48 Indeni 48 Egbin 48 Epupa 48 Sanyati 48 Miwani 48 Merafe Resources 48 Tazama 48 Phakama 48 UETCL 48 Gilgel Gibe II 48 Nchanga smelter 48 Steelpoort 47 copperbelt 47 CEO Thulani Gcabashe 47 ferrochrome furnaces 47 Mulanje Mountain 47 Mopani Copper Mines 47 Nathpa Jhakri 47 Morupule Power 47 Indeni Petroleum Refinery 47 Indwe 47 Merafe 47 utility Eskom 47 Potgietersrus 47 Mr Mutati 47 Kariba hydro 47 Mahanadi Coalfields 47 Damtshaa 47 Eskom 47 Ruacana 47 Eskom ESCJ.UL 47 Etunda Irrigation Scheme 47 Tiwai 47 Carin de Villiers 47 Tarong 47 Chambeshi 47 Magadi Soda 47 Ramisi 47 Kansanshi mine 46 Konkola Copper Mines KCM 46 Karuma 46 Komatipoort 46 spokesman Fani Zulu 46 Rihand 46 Nkomati 46 Saldanha Steel 46 Baluba copper mine 46 Mafambisse 46 Darious Kapembwa 46 Umgeni Water 46 hydro electric power 46 Matabeleland Zambezi Water 46 NOCZIM 46 chairman Bobby Godsell 46 parastatal 46 Samancor 46 Cato Ridge 46 #Mw [001] 46 Kayelekera mine 46 Kabaghe 46 Tanga Cement 46 spokesperson Fani Zulu 46 Grootegeluk mine 46 Thabazimbi mine 46 Mandiwanza 46 chairperson Bobby Godsell 46 Burgersfort 46 Tiwai Point 46 Olifants river 46 Abigail Chaponda 46 Emfuleni 46 Dan Marokane 46 Eskom Medupi 46 supercritical steam 45 Kusile 45 Tubatse 45 Rajiv Gandhi Thermal Power 45 Moab Khotsong mine 45 Doornkop 45 Vergenoeg 45 Misheck Wangwe 45 Nitrogen Chemicals 45 Ukhozi 45 Papalanto 45 Namanve 45 Hlangani 45 Lebombo border post 45 Tete Province 45 Raichur Thermal Power 45 Koeberg Unit 45 #MW hydro [001] 45 Bin Qasim Thermal Power 45 Zambia Copperbelt 45 Egbin Power 45 Modikwa 45 Mozambique Cahora Bassa 45 Natref 45 Upper Kothmale 45 Mpumalanga Province 45 Teachers ZNUT 45 Thalanga 45 Zyambo 45 Polokwane smelter 45 Unki 45 Copper Mines KCM 45 Sasol Secunda 45 Louis Pieterse 45 Nqwababa 45 Barapukuria coal 45 Kiwira 45 Kondozi 44 Chitrangi 44 Sasol Synfuels 44 Mmamabula 44 D' Ujanga 44 Klipspruit 44 Kagem mine 44 Bujagali dam 44 Hidroelectrica de 44 Jojobera 44 China Mulungushi Textiles 44 Ekurhuleni Municipality 44 Mines ERPM 44 Xstrata Alloys 44 Jacob Maroga 44 Jwaneng Orapa 44 Grootvlei 44 eThekwini municipality 44 Sandile Simelane 44 Orapa Letlhakane 44 Development Agency ZDA 44 Emalahleni 44 Kiira 44 Sapref 44 Mr Nyoike 44 Geregu 44 Alaoji 44 RED1 44 Oswell Munyenyembe 44 R5 6bn 44 Letlhakane Mines 44 ferrochrome smelters 44 Chisumbanje 44 Tati Nickel 44 Scaw 44 Marula mine 44 water reticulation 44 Etzinger 44 Ingula 44 Olkaria 44 Tokwe Dam 44 Konkola Copper Mine 44 Scaw Metals 44 Tiroda 44 Fani Zulu 44 Lonmin Platinum 44 Aboadze 44 Mooiplaats 44 Kampamba 44 Zimplats 44 KenGen 44 Volta Aluminium Company 44 Murowa mine 43 Modikwa mine 43 Koeberg 43 Skorpion Zinc mine 43 MOZAL 43 Ballylumford 43 Mugher 43 Sonjica 43 hydro electric 43 Monareng 43 #MVA [002] 43 Union BMWU 43 Mines KCM 43 Dominion Reefs 43 Zambia MUZ 43 Grootegeluk 43 Mbazima 43 Chandil 43 Talcher 43 Lephalale Limpopo 43 Lumwana Mine 43 Peter Ndwiga 43 #mw [003] 43 Mererani 43 #mw [002] 43 Palamin 43 Maputo Beira 43 Maithon 43 MOZAL aluminum smelter 43 Ferrochrome 43 Mumias sugar 43 Upper Kotmale 43 Nkana smelter 43 Eskom Kusile 43 CEO Siyabonga Gama 43 Freda Rebecca 43 Tororo Cement 43 De Hoop Dam 43 Mid Marsyangdi 43 Kafue river 43 Kroondal mine 43 mw captive 43 Orlando Ekhaya 43 Holfontein 43 Mozal aluminum smelter 43 Lavumisa 43 Ntshalintshali 43 Korangi Thermal Power 43 Sheltam 43 Eskom Medupi power 43 Optimum Coal 43 Morupule B 43 Moorvale 43 Magubane 43 Chambishi 43 Power Pool SAPP 43 Kengen 42 Zambia 42 Kafue Gorge Lower 42 generator KenGen 42 Spoornet 42 Limpopo 42 Maydon Wharf 42 Pragati Power 42 beneficiation plant 42 Mukondo 42 Pebble Bed Modular 42 Mambilla Hydro 42 opencast mines 42 Sipho Mkhize 42 eMalahleni 42 Struandale 42 Volta Aluminum 42 #MW [003] 42 NIOMCO 42 Hernic 42 ferro manganese 42 R3 6bn 42 Eastern Coalfields Ltd 42 Anglo Platinum Angloplat 42 Moolmans 42 Moatize coal mine 42 Otjozondu 42 Kansanshi 42 APA Lusaka Zambia 42 Maqubela 42 Lombanya 42 Bindura Nickel 42 Namakwa Sands 42 spokesman Sven Lunsche 42 Rossing Uranium 42 Mossel Bay refinery 42 Bellsbank 42 Dowans Holdings 42 Klerksdorp 42 Hotazel 42 Konkola copper 42 Tete province 42 Wildlife Authority ZAWA 42 Bellary Thermal Power 42 Ferro chrome 42 Mozal smelter 42 Baobab shaft 42 Maryborough Sugar Factory 42 Luilu 42 Olkaria II 42 Middle Marsyangdi 42 Elitheni 42 Azito 42 Medupi 42 Jaco Kriek 42 Limpopo Province 42 Exxaro Coal 42 Kalaa Mpinga 42 Shaft Sinkers 42 Kudremukh Iron Ore 42 Bujagali Dam 42 Reuel Khoza 42 Vardhman Group 42 ZCCM 42 MW cogeneration 42 Goedgevonden 42 Transnet Pipelines 41 Moatize coal project 41 mega watts MW 41 Damang mine 41 Tata Mundra 41 Alexkor 41 Inyanda 41 boilers turbines 41 Kihansi 41 Krishnapatnam ultra 41 Loy Yang 41 ADMARC 41 Kayelekera uranium mine 41 Amandelbult mine 41 Namibia Pty Ltd. 41 Orapa diamond 41 Luanshya Copper Mines 41 Afrisam 41 Zaamwani 41 Bui Dam 41 Geita Gold Mine 41 R1 6bn 41 Norochcholai 41 Buffelsfontein 41 Chambishi Metals Plc 41 LUSAKA Reuters 41 Mookane Domestic Power 41 Obajana 41 Rössing Uranium 41 Luita 41 Imbani 41 Temane 41 #oz [001] 41 Zincor 41 Mozal 41 Norochcholai coal power 41 Frischgewaagd Ledig 41 GoldFields 41 ferro alloy 41 Marropino mine 41 Mopipi 41 Murrin Murrin nickel 41 Necsa 41 Samancor Chrome 41 AfriSam 41 Styldrift 41 Farmers Union ZNFU 41 Witkop mine 41 Ekurhuleni municipality 41 Iduapriem mine 41 Langage 41 Prospecton 41 Coppabella mine 41 Ltd KPRL 41 based Avient Aviation 41 #mw [001] 41 Bujagali 41 Bhagirathi river 41 Van Rheede 41 #x# Mw 41 Sasol Mining 41 Nacala Velha 41 Engen refinery 41 Nkomati nickel mine 41 Gas Turbine Power 41 Namcor 41 bulk earthworks 41 CEO Jacob Maroga 41 Kolomela 41 9MW 41 Lumwana copper 41 Amandelbult 41 #GWh [003] 40 Nigeria ALSCON 40 Coega smelter 40 Bogoso 40 BLCP 40 Heita 40 Munali nickel mine 40 Mozal aluminum 40 Lesotho Highlands 40 #X# MW 40 Banspani 40 Great Noligwa 40 DCD Dorbyl 40 Birla Tyres 40 Samancor Manganese 40 Ropar thermal 40 Murowa diamond mine 40 Fertiliser Factory 40 Driefontein 40 Upper Kotmale Hydro 40 Dadin Kowa 40 pelletising 40 Natref refinery 40 Minister Dipuo Peters 40 #Mw [002] 40 Shanduka Group 40 supercritical boilers 40 Olkaria III 40 Tekeze 40 Vlakfontein 40 Goondicum 40 Activox 40 OCGT 40 Namwater 40 Turamdih 40 #Mw [003] 40 Kusile coal 40 Madikizela 40 Chambishi Metals 40 Singareni Collieries 40 Monto Minerals 40 Moma mine 40 RTPS 40 Songo Songo Island 40 Lower Mattagami 40 Elandsrand mine 40 Tshwane Metro 40 Jaduguda 40 ferrochrome smelter 40 Botswana Mozambique Namibia 40 1mt 40 Mossgas 40 Dukwi 40 hydroelectric 40 Mopani Copper Mine 40 Hindustan Fertiliser Corporation 40 megawatt hydropower 40 Itakpe 40 Mowana 40 Aluminium smelter 40 Elandsrand 40 Rajasthan Rajya Vidyut 40 Lumwana Mining 40 Luanshya Copper Mine 40 Foreign Minister Kabinga 40 R4 5bn 40 Nkomati Nickel 40 Ruashi mine 40 AES VCM 40 Jwaneng mine 40 Sasan Ultra Mega 40 Indeni Oil 40 Kamsar 40 R1 8bn 40 Mike Mtakati 40 Boguchany 40 EXX SJ 40 Pelindaba 40 #MW #MW [001] 40 Coega IDZ 40 Rayford Mbulu 40 Valli Moosa 40 Bokaro Steel 40 mw thermal 40 Aroaima 40 Blanket Mine 40 Palabora 39 Sasol JSE SOL 39 Enterprises Alec Erwin 39 #MW [001] 39 Makhado 39 Marikana mine 39 Finsch mine 39 Implats 39 Kariba dam 39 Mufulira smelter 39 Orapa Mine 39 Bujagali hydro power 39 Thuthuka 39 Mimosa Platinum 39 Portland Cement PPC 39 KDMP 39 Giyani 39 Eskom Koeberg 39 Kayelekera 39 Tana Beles 39 R4 ,5 39 Bongani Nqwababa 39 Saiccor 39 Marikana 39 Fundanga 39 #MW hydro [002] 39 chairperson Valli Moosa 39 Cahora Bassa hydroelectric dam 39 IPPs 39 BioTherm Energy 39 Mowana mine 39 Kagara Zinc Ltd. 39 Vele colliery 39 Zambia KCM 39 Gilgel Gibe III 39 Lumwana Copper Project 39 Tallawarra 39 APGenco 39 Zambia NCZ 39 Limited CoAL 39 Mponeng mine 39 #kw [001] 39 Noamundi 39 Ajaokuta Steel 39 R1 ,3 billion 39 Selaulim 39 Secunda Mpumalanga 39 Kinleith pulp 39 R1 ,5 billion 39 Sponge iron 39 Linhas Aereas de Mocambique 39 operate viably 39 Afam VI 39 KIOCL 39 Bluewaters 39 Zambia Konkola Copper 39 Copper Investments ZCI 39 Tshwane municipality 39 Muiane 39 Aluminium Smelter 39 Konkola Deep Mining 39 Uchumi Supermarkets 39 Stanwell Corporation 39 Kayelekera Uranium Project 39 Alumina Refinery 39 National Electricity Regulator 39 Bumbuna Hydro 39 Aberthaw 39 Grinaker LTA 39 SECL 39 Association IJMA 39 #MW biomass 39 energisation 39 Loy Yang Power 39 Eskom Transnet 39 Reactor PBMR 39 Letšeng mine 39 Sasan ultra mega 39 Coega aluminum smelter 39 Ibom Power 39 Alcan Kemano 39 modular reactor PBMR 39 Port Pirie smelter 39 Karuma dam 39 Moma Titanium Minerals 39 Hindustan Steelworks Construction 39 Uttarpara plant 39 Lumwana 39 Munali nickel project 39 Hutti Gold Mines 39 retrenchees 39 #MW [004] 38 Mongu Kalabo road 38 By Zephania Ubwani 38 Angovia mine 38 Impala Platinum Implats 38 Nyanda 38 megawatt mw 38 Alcan smelter 38 Kloof mine 38 Konkola Stadium 38 #,#,# MTPA 38 railway sidings 38 NIPPs 38 Ferro Chrome 38 Esorfranki 38 Zambeze coal 38 Buffelsfontein mine 38 Medupi coal 38 Arun Jagatramka 38 Mthombo 38 Eastern Coalfields 38 Moneypoint 38 Hindustan Cables 38 opencast 38 Khumani 38 #MW Bujagali 38 Mount Rawdon 38 coal washery 38 Teberebie 38 NRE Wongawilli Colliery 38 Geregu Power 38 Higashidori nuclear 38 MW hydropower 38 bagasse cogeneration 38 PBMR 38 Mufulira copper 38 Lom Pangar 38 R8bn 38 Sasolburg 38 Anil Salgaocar 38 Buzwagi 38 Xstrata Merafe 38 Mphanda Nkuwa 38 5MW solar 38 near Carletonville 38 Khumani iron ore 38 Merensky furnace 38 Voorspoed 38 Aberthaw Power 38 Balagarh 38 tailings leach 38 Lumwana mine 38 desulphurisation 38 Zondereinde mine 38 Pala Maneri 38 Copper Smelter 38 Mkushi Copper Project 38 ferrochrome producer 38 cultivate jatropha 38 Anglo Platinum 38 Chris Hani Baragwanath 38 Nkomati mine 38 Coega Industrial Development 38 Lunsche 38 Joida 38 Waterberg coalfield 38 Madhucon 38 Jindal Vijayanagar Steel 38 Gaberone 38 Tiomin Resources 38 Modikwa platinum mine 38 circulating fluidised bed 38 Modder East mine 38 Sakthan 38 R6bn 38 Super Thermal Power 38 Ajaokuta Steel Plant 38 Suralaya 38 Sahagunj 38 Three Gorges hydropower 38 miningmx.com SOUTH Africa 38 Harmony Elandsrand mine 38 Pilanesberg platinum mine 38 Bulgaria Kozloduy 38 spokesman Willie Jacobsz 38 Waterberg coal 38 Kei Rail 38 Minara Resources Ltd 38 Tarong Power 38 Rashtriya Ispat Nigam Limited 38 Inyatsi Construction 38 Brahmani Steels 38 R3 5bn 38 GEPL 38 Ezulwini mine 38 #MW [002] 38 Chandgana 38 Ethekwini municipality 38 Wuskwatim 38 Aerosud 38 Witbank 38 Norochcholai Coal Power 38 Tshwane Metro Council 38 Ruashi copper 38 Mambilla 38 Lujo virus infected 38 Dolgarrog Aluminium 38 Sephaku Cement 38 Benga Coal Project 38 Mukondo Mountain 38 Uskmouth 38 Dube Tradeport 37 BK# kimberlite 37 Dikulushi 37 Naiknavare 37 Mupamhadzi 37 Langer Heinrich mine 37 Bombela 37 Mmamabula Energy Project 37 Munali Nickel Project 37 alluvial diamond mines 37 Cde Made 37 Minister Erkki Nghimtina 37 Bramhani 37 minister Kalombo Mwansa 37 Mozambique Tete 37 Lumwana Copper Mine 37 Kuyasa 37 Vele Colliery 37 Maroga 37 Lonmin Marikana 37 opencast mining 37 Ekibastuz GRES 37 Mutanga 37 synthetic rutile 37 nickel smelter 37 AK6 kimberlite 37 R2 4bn 37 Sahaganj 37 TRANSNET 37 Coolkeeragh 37 Geita mine 37 Tati Nickel Mine 37 BGML 37 #c/kWh 37 Krishnapatnam 37 Limpopo province 37 Gwabe 37 Udumalpet 37 coke oven battery 37 Aberthaw power 37 Aluminum Smelting 37 NNN ZANIS 37 Mahagenco 37 regulator Nersa 37 Vele 37 N2 Gateway housing 37 Chiria iron ore 37 R2 9bn 37 Gamsberg project 37 Obajana Cement 37 Alluvial Diamond 37 Palabora Mining Company 37 MW Dadri 37 Angloplats 37 Sasol Secunda plant 37 ferro chrome 37 Gibe III 37 Skorpion Zinc Mine 37 Liqhobong 37 sinter plant 37 Termoelectrica 37 turbo generator 37 MegaWatt 37 Bumbuna 37 RBCT 37 recommissioning 37 Sanghi Industries 37 Bosai 37 Maryborough Sugar 37 cashew nut processing 37 Sulphuric Acid 37 pelletising plant 37 Northam Platinum 37 Rajpura Dariba 37 R2 ,5 37 Bombela consortium 37 Gold Fields Driefontein 37 Petromoc 37 Emmanuel Camillo 37 Naptha 37 Iscor 37 Earthlife 37 R# ,5 [002] 37 Gautrain rapid 37 IPP 37 Mbombela 37 CoAL 37 SX EW plant 37 II Chamera III 37 Honeymoon uranium 37 Tanjung Jati B 36 Hunterston B 36 Co operative Creameries KCC 36 lube blending 36 Rutile 36 Exxaro Resources Ltd. 36 Entally 36 Avinashi 36 Paladin Langer Heinrich 36 ZAR #.#bn [001] 36 #,#,# mw 36 canalisation 36 Bellary Hospet 36 Waterberg 36 Vemagiri 36 pelletisation plant 36 Songo Songo gas 36 Vijayawada Thermal Power 36 HPGCL 36 Sally Malay 36 Milk Vita 36 Mombasa Eldoret 36 unmotorable 36 Debswana Diamond Company 36 Akanani 36 Riverland irrigators 36 Mabandla 36 Kerafed 36 Combined Cycle Gas Turbine 36 R# ,3 [002] 36 Iisco 36 UF6 conversion 36 Impala Rustenburg 36 Tata Motors Singur 36 GMB depots 36 magnesium smelter 36 Bongaigaon Thermal Power 36 Mossel Bay 36 Sponge Iron 36 Weaving Mills 36 Sunon Asogli Power 36 Kumba Sishen 36 Batong Buhay 36 Ngqura 36 Zincor refinery 36 Kansanshi copper gold 36 Bengal Bight 36 liquid CTL 36 Iduapriem 36 #.#MW wind turbine 36 Namanve Industrial Park 36 Pelindaba nuclear 36 Zambia Chambishi 36 Mfeketo 36 Stefanutti Stocks 36 megawatt geothermal 36 Jaitapur Maharashtra 36 greenfield aluminum smelter 36 Basil Read 36 Mbuyu 36 Mokaba 36 Skorpion Zinc 36 Nelson Mandela Metropole 36 Tau Lekoa mine 36 #oz [002] 36 eThekwini Municipality 36 Voorspoed mine 36 Merafe Resources Ltd. 36 Gold Fields GFIJ.J 36 Malaprabha 36 Burnstone Mine 36 Somkhele 36 NERSA 36 lubricant blending 36 Exxaro 36 Bonikro mine 36 APA Maputo Mozambique 36 Lonshi mine 36 Mandhana 36 Mundra Ultra 36 Butibori 36 integrated steelworks 36 steam turbine generators 36 2MW wind turbines 36 electricity parastatal Eskom 36 Scoul 36 Paragodu 36 ferromanganese 36 iGas 36 Sasan Madhya Pradesh 36 R1 5bn 36 AHealth 36 EEPCo 36 Capanda 36 Walvis Bay harbor 36 Chakravortty 36 Sapref refinery 36 MegaWatts 36 Derek Webbstock 36 Longannet 36 Mupane mine 36 R1 ,4 billion 36 Western Corridor Recycled 36 Lake Mokoan 36 Chambishi Copper Smelter 36 Comalco Alumina Refinery 36 R# ,5 [001] 36 Bombela Consortium 36 Yandi iron ore 36 #.#MW turbines 35 NINL 35 Minntac Mine 35 Savuka mine 35 Chanderiya 35 Patache port 35 Vedanta Alumina 35 multibillion rand 35 Rokkasho Aomori Prefecture 35 R8 5bn 35 Vestas V# turbines 35 R1 #bn [001] 35 Navachab gold 35 Africa DBSA 35 Rajasthan Atomic 35 Anakapalle 35 R2 ,1 billion 35 Calgro 35 unviable 35 Alumar refinery 35 chromite mines 35 Dominion Reefs Uranium 35 Baluba mine 35 Shriprakash Jaiswal 35 sponge iron 35 Maritsa Iztok 35 Teba Bank 35 Southland Colliery 35 Angloplat 35 R1 ,9 billion 35 Floods displace thousands 35 cane crushing 35 alumina smelter 35 Wiluna mine 35 Dutwa nickel project 35 FeNi III 35 Potholed roads 35 BAMB 35 Fulbari 35 R# ,8 [002] 35 stockfeed 35 #,# tpa HDPE 35 Brian Molefe 35 Mupane 35 Langer Heinrich 35 Sindesar Khurd 35 Kudu Gas 35 Trekkopje mine