Makampani a Donglai adakhazikitsidwa zaka 30 zapitazo ndipo ndiwopereka zinthu zonyamula katundu. Chomera chathu chimakwirira kudera la masikweya mita opitilira 18,000, okhala ndi mizere 11 yopangira zida zapamwamba ndi zida zoyesera zofananira, ndipo zimatha kupereka matani 2100 a filimu yotambasula, 6 miliyoni masikweya tepi yosindikiza ndi matani 900 a PP zomangira tepi pamwezi. Monga ogulitsa otsogola m'nyumba, Donglai Viwanda ali ndi zaka zopitilira 20 pakuchita filimu yotambasula, tepi yosindikiza ndi PP zomangira tepi. Monga chida chachikulu chakampani, chadutsa chiphaso cha SGS. Pambuyo pazaka zachitukuko, ma CD a Donglai Viwanda akhala akutsatira lingaliro lautumiki la [ubwino woyamba, kasitomala woyamba]. Kampaniyo ili ndi akatswiri amagulu kuti apatse makasitomala ntchito ya VIP ya maola 24 ndi zinthu zapamwamba kwambiri. Nthawi yomweyo, kampaniyo imawonjezera ndalama pakufufuza ndi chitukuko ndipo imapanga zinthu mosalekeza kuti zitsimikizire [zogulitsa zapamwamba kwambiri, zochokera ku Donglai Viwanda packaging] Makampani a Donglai amapanga ndikugulitsa magulu anayi akuluakulu azinthu: 1. PE stretch film series product 2. BOPP tepi mndandanda mankhwala 3. PP/PET zomangira tepi mndandanda mankhwala 4. Self zomatira Zida, zinthu zonse kutsatira chiphaso chitetezo chilengedwe ndi SGS certification. Zogulitsa zimagulitsidwa padziko lonse lapansi, ndipo khalidweli ladziwika ndi makasitomala apakhomo ndi akunja. Makampani a Donglai adadzipereka kukhala wopanga kalasi yoyamba mumakampani opanga ma CD, kupatsa makasitomala zabwino kwambiri ndi ntchito.