| 1 | Supplier 01 | North America / Asia | Powder, capsules, bulk extract | Hot-water extract; commonly standardized to approximately 20%–40% beta-glucans | Identity, moisture, microbiology, heavy metals and beta-glucan assay | GMP / HACCP commonly available |
| 2 | Supplier 02 | East Asia | Organic powder, granules, private-label products | Fruiting-body extract; water extraction is the most widely used method | Microbial panel, pesticides, residual solvents and nutritional analysis | Organic options / ISO systems |
| 3 | Supplier 03 | Europe / Asia | Bulk powder, liquid extract, tablets | Dual-stage water and alcohol extraction may be offered for broader compound coverage | DNA authentication, beta-glucans, contaminants and stability testing | GMP / ISO 22000 commonly available |
| 4 | Supplier 04 | North America | Capsules, sachets, bulk powder | Fruiting-body powder or extract; grain-free specifications may be available | Allergen review, microbiology, heavy metals and certificate-of-analysis support | GMP / Non-GMO options |
| 5 | Supplier 05 | East Asia | Spray-dried extract, powder, beverage premix | Water-soluble extract designed for powders, functional drinks and food applications | Solubility, moisture, particle size, microbiology and heavy-metal screening | HACCP / Food-grade manufacturing |
| 6 | Supplier 06 | Europe | Certified-organic powder, capsules, bulk ingredients | Organic fruiting-body material; extraction ratio and beta-glucan level depend on the batch | Organic verification, pesticide residues, microbiology and identity testing | EU organic / GMP options |
| 7 | Supplier 07 | North America / Latin America | Bulk extract, capsules, functional-food ingredients | Hot-water extract with customized concentration and particle-size specifications | Third-party testing for microbes, heavy metals, pesticides and adulteration | GMP / HACCP commonly available |
| 8 | Supplier 08 | East Asia / Southeast Asia | Powder, granules, instant beverage ingredients | Water extract with optional carrier ingredients for improved dispersibility | Moisture, ash, solubility, microbiology and heavy-metal testing | ISO 9001 / HACCP options |
| 9 | Supplier 09 | Europe / North America | Standardized extract, capsules, sachets | Fruiting-body extract with beta-glucan standardization; exact levels vary by product | Batch-specific certificate of analysis, identity and contaminant screening | GMP / Vegan options |
| 10 | Supplier 10 | Asia / Oceania | Bulk powder, capsules, blended formulations | Fruiting-body powder or extract; custom extraction ratios may be available | Microbiology, heavy metals, pesticides, residual solvents and shelf-life checks | HACCP / ISO food-safety systems |