In the classified Joint Staff briefing slides, there was a listing of the ready status as of 28 February for nine new Ukrainian brigades. One of those was a reserve brigade that existed (at least on paper) when the war started. The other eight were new brigades. They are:
- 116th MBde (new unit),
- 47th MBde (new unit),
- 33rd Bde (reserve unit, mechanized?),
- 21st Bde (new unit, mechanized?),
- 32nd Bde (new unit, mechanized?),
- 37th Bde (new unit, mechanized? Not listed on militaryland.net),
- 118th MBde (new unit),
- 117th Bde (new unit, mechanized?),
- 82nd Air Assault Bde (new unit).
The charts do list the equipment being prepared for them. To summarize:
Artillery:
116th MBde: 30 tanks (T-64 and ???), 90 IFVs (BMP) and 12 AS-90 (GBR 155mm SP Artillery) and 10 2S1 (UKR 122mm SP Artillery).
47th MBde: 28 tanks (T-55S), 99 IFVs (M-2 Bradley) and 12 M-109s (U.S. 155mm SP Artillery) and 12 D-30 (UKR 122mm Towed)
33rd Bde: 32 tanks (Leopard II), 90 MRAPs (MaxxPro) and 12 M-119 (U.S. 105mm Towed)
21st Bde: 30 tanks (T-64), 101 AFVs, (20 CVRTs, 51 MRAPs, 30 APCs) and 10 FH-70 (???and ITA 155mm Towed)
32nd Bde: 30 tanks (T-72 and ???), 90 MRAPS (MaxxPro) and 12 D-30 (EST 122mm Towed)
37th Bde: 30 tanks (AMX-10 and ???), 70 MRAPs and 12 D-30 (EST 122mm Towed)
118th MBde: 28 tanks (T-72s), 90 APCs (M-113) and 8 FH-70 (EST 155mm Towed).
117th Bde: 31 tanks (PT-91s), 58 APCs, 10 MRAPs and 12 D-30 (EST 122mm Towed) and 4 AS-90 (GBR 155mm SP Artillery)
82nd Air Assault Bde: 14 tanks (Challenger), 90 APCs (Stryker) and 24 M-119 (U.S. 105mm Towed)
The charts show the vehicle type and in parentheses the country they are from. Tanks are discussed here and IFVs The nine new brigades for the spring offensive – tanks | Mystics & Statistics (dupuyinstitute.org), and APCS here: The nine new brigades for the spring offensive – APCs and IFVs | Mystics & Statistics (dupuyinstitute.org).
I am assuming that if I have these documents, then the Russian FSB also has them. I gather they are still officially classified.