As of June 2025, 51.81% is owned by Promoters and 48.19% by Public.

Among Promoters holding, Indian Promoters holds 41.67% and Foreign Promoters holds 10.14%.

Institutional holds 8.96% (Insurance Companies 7.76%) and Non-Institutional holds 38.90% as Public shareholders.

Top five Promoters holding highest number of shares of Guj. Petrosynthe company are Multichem Private Ltd (14.00 lakhs shares / 23.46%), Charita Thakkar (6.05 lakhs shares / 10.14%), Rajender Prasad Nuthakki (4.42 lakhs shares / 7.40%), Ursula Rameshchandra Thakkar (3.53 lakhs shares / 5.91%) and Urmi Nuthakki Prasad (2.90 lakhs shares / 4.86%).