3TG ( Tin, tantalum, tungsten and gold)

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    3TG (Tin, tantalum, tungsten and gold) are often mined in the context of armed conflict in the democratic republic of the Congo and surrounding countries and are therefore considered "conflict Minerals".
    
    Conflict ore refers to minerals mined in situations of armed conflict and human rights violations, especially in the eastern provinces of the Democratic Republic of the Congo, which are controlled by the Government of the Congolese Army and many other armed insurgent groups, such as the FDLR, Resources mined at mining sites controlled by the People's National Assembly (CNDP). It is not only Congolese people who plundered Congo's natural resources. During the war, especially Uganda, Rwanda and Burundi, they also profited from Congo's resources. Today, government units in these countries continue to smuggle Congolese resources. The profits from these resources are used to support the Second Congolese War, and controlling the sites with rich mineral deposits has become one of the focuses of the war [1]. Common mineral deposits include cassiterite, black tungsten, coltan, and gold. These minerals are produced in eastern Congo and, after multiple suppliers, enter various electronics companies. These minerals are an integral part of the equipment used in daily life, such as mobile phones, laptops and MP3 players.
   
  "Conflict metals" refers to metals from the eastern Democratic Republic of the Congo and surrounding countries. These countries include: DRC, Rwanda, Uganda, Burundi, Tanzania, Kenya. These metals include Au, Ta, W, Co, Sn. Such "conflict metals" are illegally mined or smuggled by military groups in the region, causing serious human rights, environmental and other issues. Some metal minerals have become the main source of revenue for armed insurgent groups in the Democratic Republic of the Congo , Used to trade arms, continue its bloody conflict with the government, and meet local civilians, which has caused international controversy. These types of metal minerals include niobite, cassiterite, wolframite and gold, which are refined into tantalum ( Ta), tin (Sn), tungsten (W), cobalt (Co), and gold (Au) are called conflict metals.
   
    Conflict-free metals are metals other than those mentioned above. In general, when companies implement EICC or social responsibility, they promise not to use "conflict metals" in order to protect social responsibility in areas such as human rights and the environment.

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