| 1 | HUNG PHU THINH INVESTMENT JSC | 2013 | Lot C6-Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Le Van Huy | Production of fertilizers and nitrogen compounds | Private economic |
| 2 | KIZUNA QUANG NGAI JSC | 2012 | Lot C5-2, Road No. 5, Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Makisaka Hisashi | Real estate business | Non-state mixed economy |
| 3 | PHA DIN CORPORATION | 2004 | Lot C4 Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Vo Quang Trinh | Production of cement, lime and gypsum | Private economic |
| 4 | QUANG NGAI PETRO TRANSPORTATION JSC | 2010 | Lot CN08, Road No. 6, Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Dinh Minh Tu | Other supporting service activities related to transportation | State economy (from 51% to less than 100% state capital) |
| 5 | DAI QUANG MINH CONSTRUCTION AND INVESTMENT JSC | 2017 | Lot C1-3, Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Phung Tran Duy Tung | Producing concrete and products from cement and gypsum | Private economic |
| 6 | LOC PHAT INVESTMENT AND CONSTRUCTION JSC | 2010 | Lot C1.3 Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Le Minh Tuan | Construction of civil engineering works | Private economic |
| 7 | HIEP THANH PAPER JSC | 2006 | Lot C3-8, Road No. 1 - Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Bui Minh Do | Producing products from plastic | Private economic |
| 8 | HUNG PHU JSC | 2006 | Lot C6- 2 Road No. 5 Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Tran Quang Vien | Production of fertilizers and nitrogen compounds | Private economic |
| 9 | MIEN TRUNG PETROLEUM SERVICES AND TRADING JSC | 2008 | Lot C5-1 Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Ton That Anh Tuan | Wholesale of solid, liquid, gaseous fuels and related products | idpvn.com |
| 10 | PHA DIN CONCRETE LIMITED COMPANY | 2017 | Lot CN 08, Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Tran Van Cuong | Rental of machinery, equipment and other tangible goods | idpvn.com |
| 11 | QUANG NGAI PLASTIC TECHNOLOGY CO., LTD. | 2021 | Lot CN-05, Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Trao Phi Long | Producing products from plastic | idpvn.com |
| 12 | VIET NAM KING CHEN INDUSTRIAL &TRADING CO., LTD. | 2018 | Lot C.L29, Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | He Guolin | Producing shoes | idpvn.com |
| 13 | TAN MY PHAT INVESTMENT AND PRODUCTION CO., LTD. | 2013 | Lot C.L24- Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Do Anh Tuan | Manufacture of products from other non-metallic minerals n.e.c | idpvn.com |
| 14 | FOSTER ELECTRIC (QUANG NGAI) CO., LTD. | 2013 | Road No. 5, Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Nguyen Quan Hoang | Manufacture of electronic components | idpvn.com |
| 15 | SUMIDA ELECTRONIC QUANG NGAI CO., LTD. | 2015 | Lot CN - 03, Road No. 02, Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Toshiharu Sato | Manufacture of electronic components | idpvn.com |
| 16 | NBB QUANG NGAI CO., LTD. | 2003 | Lot C1-3, Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Tran Dinh Tuan | Cutting, shaping and finishing stones | idpvn.com |
| 17 | TRUONG THANH FOREST PRODUCTION TRADING CO., LTD. | 2006 | Lot C03-2, Tinh Phong Industrial Park, Tinh Phong Commune, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Huynh Thi Cam Tu | Wholesale of agricultural and forestry raw materials (except wood, bamboo); and live animals | idpvn.com |
| 18 | VIET UC CO., LTD. | 2007 | Lot C4, Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Tran Minh Quang | Producing products from plastic | idpvn.com |
| 19 | VINA ALPHA CO., LTD. | 2021 | Lot C.L25 Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Tran Quang Hong | Construction of other civil engineering works | idpvn.com |
| 20 | DAI SON CEMENT CO., LTD. | 2021 | Lot C1, Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Dang Thi My Hanh | Production of cement, lime and gypsum | idpvn.com |
| 21 | TIEN PHAT TRADING SERVICES CO., LTD. | 2006 | Lot C03-08, Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Tran Thi Kim Phuong | Retail sale of other goods in specialized stores | idpvn.com |
| 22 | VIET QUANG CO., LTD. | 2004 | Lot C6-Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Hoang Yen | Producing iron, steel, cast iron | idpvn.com |
| 23 | THUYEN NGUYEN TRADING IMPORT EXPORT CO., LTD. | 2006 | Lot C07 (07-06) Tinh Phong Industrial Park, Tinh Phong Commune, Son Tinh District, Quang Ngai, Vietnam | Nguyen Thi Nguyen | Sewing of clothing (other than fur clothing); | idpvn.com |
