As at 11 June 2019, our Group was the registered owner of certain patents which,in the opinion of our Directors, are material to our Group’s business and are listed as follows:
1. A liquid distributor structureapplicable to falling-filmevaporators
2. A common tower structure forisolating two materials
3. A seven-tower device with multieffect distillation technology tojointly produce quality alcoholand ethanol fuel
4. A device and energy-saving technique to jointly produce ordinary and quality edible alcohol
5. A coupling device and technique for quality alcohol distillation with molasses raw materials and waste heat concentration.
6. Falling film evaporator
7. A coupling system for qualityalcohol distillation withmolasses raw materials andwaste heat concentration
8. Fermentation method for welan gum
9. Method and application using industrial waste water and waste gas of bio-butanol to produce microalga.
10. Production method for absolute ethanol.
11. Alcohol mash tower reboiler systemusing centrifugal clarifiedeffluent as circulating medium
12. A six-tower differential distillation device for super-fine grade edible alcohol and its technique
13. Mixed raw materials fermentation technique for alcohol production
14. Horizontal alcohol fermentation tank with division plates
15. A device and technique to produce absolute ethanol using fermentation mesh as raw materials
16. A coupling device and technique for alcohol differential pressure distillation with molasses raw materials and waste heat concentration
17. An immobilized carrier for microorganism and its preparation method
18. A production method to jointly produce bio-butanol and bio-ethanol
19. A distillation and dehydration device and technique to jointly produce ethanol fuel and ordinary alcoholic beverage
20. Device and method to recycle low pressure triple effect rectified ethanol
21. Multi anti-clogging tube shell heatexchanger
22. A device and method to acidize and remove sand from raw materials in ethanol production
23. Vertical alcohol continuousfermentation tank
24. A clean production method for starchbased ethanol fuel
25. Six tower differential pressure distillation equipment and process for producing superfine grade edible alcohol
26. Five tower differential pressure distillation equipment and process for producing alcohol
27. A five-tower second grade differential distillation device and technique for quality edible alcohol
28. An energy-saving device forproduction of alcohol and fuel ethanol
29. A multi-tower negative pressuredistillation device for alcohol andfuel ethanol
30. A differential pressure distillation energy-saving device and technique to produce premium alcohol with double thick tower
31. A strain of sphingomonas paucimobilis and its application