China is one of the largest tin and other non-ferrous metals manufacturer and exporter on the globe. The manufacturing base for tin ingot is from Yunnan and Guangxi. Yunan Gejiu and Guangxi Dachang account for 40% of China market. There are too many‘fake’suppliers and manufacturers online. Following non-ferrous metal suppliers, esp for tin ingot, have been sourced but not inspected by STIN verification team (www.chinabizservices.com) in China, here is the list for your reference:

1.Yunnan Tin Group ( The largest tin ingot producer on the globe )
  Product: tin ingot, lead ingot, antonimy ingot, zinc ingot, alloys etc
  Tel: 0873- 3116262 0871-6287201 6287202 

2. China Tin Group Co.,Ltd
  Product: tin ingot, lead ingot, zinc ingot, alloys
  Tel: 0772-2619220   2619221
  
3.Yunnan Chengfeng Non-ferrous Metals Co., Ltd
  Product: tin ingot, lead ingot, zinc ingot, alloys
  Tel: 0871 - 63200102 
 
4.Gejiu Zili Smeltering Co., Ltd
  Product: tin ingot, lead ingot, zinc ingot, alloys
  Tel: 0873 - 2212429
 
5. Gejiu Baiye Minerals Processing Factory
  Product: tin ingot, lead ingot, zinc ingot, alloys
  Tel: 0873-2216051

6.Gejiu Datun Non-ferrous Metals Co., Ltd
  Product: tin ingot, lead ingot, zinc ingot, alloys
  Tel: 0873-2842823

7.Guangxi Zhongshan Gold Bell Smeltering Co.,Ltd
  Product: tin ingot, lead ingot, zinc ingot, alloys
  Tel: 0774-8980015

8.Guangxi Pinggui Feidie Holdings Co., Ltd
  Product: tin ingot, lead ingot, zinc ingot, alloys
  Tel: 0774-8831132

9.Chenzhou Yunxiang Ore Smelting Co., Ltd.
  Product: tin ingot, lead ingot, zinc ingot, alloys
  Tel:0735-3236784

10.Mengzi Mining and Metallurgy Co., Ltd.
  Product: tin ingot, lead ingot, zinc ingot, alloys
  Tel: 0873-3720179

11.Guangzhou Smelter
  Product: tin ingot, lead ingot, zinc ingot, alloys
  Tel: 020-82219074

12. Yunan Metallurgical Group
  Product: tin ingot, lead ingot, zinc ingot, alloys
  Tel: 0871-8891800 

Important Notes: These tin ingot suppliers are for domestic markets in China as most of them have NO direct Export License, foreign clients have to work with a qualified export or import agent like STIN (www.chinabizservices.com) in China if they'd like smooth business for such items. All the non-ferrous metals are state-controlled business in China.
Copyright: STIN SOURCING SERVICE TEAM (www.chinabizservices.com )