With our own growing farm for mushroom logs producing, we had more than 9 years experiences in STABLY supplying all kinds of mushroom logs (Spawn): 

Oyster:  Φ10x17cm bag, weight:  1-1.2kg per bag. Normal yield around 300g per bag; 
Shiitake: Φ 12x17cm bag, weight: 1.3-1.6kg per log. Normal yield around 500g per log; 
Supplying ability: 120, 000bags/month 
Packing: 12bags/CTN (Shiitake).

Keeping stable of the quality is the most difficult, in the mushrooms growing industry! What we ensure is the  year-round supplying of quality logs, with necessary professional technology support  for mushroom growing; Then, growing good or not relying on the proper management in your growing side! 

We had clients in America, South East Asia, Australia, with over 9 years cooperation!