Chinese suppliers for boilers, compressed air and hydraulics

Checked October 2026 on the investor's budget question. New
docs/suppliers/china-utilities.md: boiler makers (ZOZEN, Sitong,
Fangkuai, Taiguo, Yuanda, Yongxing, Taishan, Nobeth) with fit for 500
kg/h at 1.25 MPa, claimed certificates, Thai references and listing
prices; the Thai rules for an imported boiler (MR and MOI notification
B.E. 2549: ASME/JIS/EN or equivalent, certification-body verification,
once-through relief does not reach 10.5 bar, licensed controller, annual
inspection); compressor makers with Thai offices (Kaishan, Denair) and
sizing; hydraulic pump sets and accumulators (Huade, Yuci, Hengli, WMD,
Renowell, Inovance, NXQ makers), the shared-ring-main risks and Thai HPU
builders; duty and freight; open RFQs.

Result: about 2M THB at the midpoint (~2.5M with contingency), ~1 % of
the 216M target, mostly the boilers; Newbilt aggregates stay Newbilt's.
total-investment notes it and lists the uncosted central hydraulic
plant; utilities CSV gets the Chinese candidates and route estimates;
backlinks from equipment-suppliers, pressing-line, README.

docs/finance/total-investment.md

@@ -67,8 +67,11 @@ on two shifts (estimate: the [scale](../scale.md) basis gives ~0.71 to
 
 Not in the total: a **reserve for the ramp-up** (staff hired before first
 revenue, overheads until volume covers them; ~10M to 20M THB, estimate),
-CD replication, financing costs, currency moves, and the archive's mobile
-shelving (to quote). The blocks are vendor prices without Thai duty or
+CD replication, financing costs, currency moves, the archive's mobile
+shelving (to quote), and the central hydraulic plant around the Newbilt
+aggregates: standby pump set, accumulator station and ring main (not
+costed yet; a Thai HPU builder quotes it,
+[Chinese suppliers](../suppliers/china-utilities.md#hydraulics)). The blocks are vendor prices without Thai duty or
 import VAT, so they assume BOI promotion: without it, ~5 % duty on ~2.3M
 USD of imported machinery (~0.11M USD) comes on top, plus ~0.17M USD of
 import VAT paid at the border and reclaimed later (estimates).
@@ -104,6 +107,17 @@ installations while the frame stays crane-ready (~3.7M THB) give ~185M
 before the reserve, still above 180M, so 180M is a low-quote outcome, not
 a plan.
 
+Chinese suppliers for the boilers, compressed air and hydraulics were
+checked in October 2026
+([Chinese suppliers](../suppliers/china-utilities.md)): about 2M THB at
+the midpoint, ~2.5M with its share of the contingency, mostly on the two
+boiler modules (ASME-stamped 1.25 MPa units from makers with Thai
+references, installed by a Thai contractor) and a little on the
+compressor (a Chinese brand bought through its Thai office). That is
+about 1 % of the target and does not change the answer; the Newbilt
+hydraulic aggregates stay Newbilt's. Chinese chillers and HVAC, larger
+blocks, are not checked yet.
+
 What decides it: the two largest machine lines have no price at all (the
 Classic and the Pheenix galvanics line), and the building depends on the
 soil. Four requests settle most of the band: the Newbilt re-quote for the

docs/finance/utilities-investment.csv

@@ -1,8 +1,8 @@
 category,item,spec_summary,candidate_thai_suppliers,cost_low_thb,cost_high_thb,cost_basis,notes
-steam,Electric/gas once-through boiler bank,"2 x 500 kg/h modules at 10.5 bar / 180 C, lead/lag, shared feed tank, feed pumps, economizer, installed",Miura Thailand (Chachoengsao); Bangkok Industrial Boilers; STE Thailand,4500000,7000000,engineering estimate,"Launch plant (October 2026): one Duplex system and one Classic, 450-540 kg/h at Newbilt's 150-180 kg/h per press, so B-1 and B-2 both at launch; the boiler hall is built for four modules (scale.md utility phasing); a third module for N+1 is an RFQ option; Miura-class modular once-through; service is Bangkok-centric, confirm northern dispatch SLA"
+steam,Electric/gas once-through boiler bank,"2 x 500 kg/h modules at 10.5 bar / 180 C, lead/lag, shared feed tank, feed pumps, economizer, installed","Miura Thailand (Chachoengsao); Bangkok Industrial Boilers; STE Thailand; Chinese route (October 2026): ZOZEN, Sitong, Fangkuai, Taiguo (ASME claimed, Thai references, no Thai service partner), see suppliers/china-utilities.md",4500000,7000000,engineering estimate,"Launch plant (October 2026): one Duplex system and one Classic, 450-540 kg/h at Newbilt's 150-180 kg/h per press, so B-1 and B-2 both at launch; the boiler hall is built for four modules (scale.md utility phasing); a third module for N+1 is an RFQ option; Miura-class modular once-through; service is Bangkok-centric, confirm northern dispatch SLA; Chinese route estimate 2.8M-5.5M THB installed (two ASME-stamped 1.25 MPa bodies USD 15k-35k each, inspection and certification, freight, Thai contractor balance of plant), about 1.6M THB less at the midpoint; imported boilers need DIW certification-body verification either way"
 steam,Biomass/wood-fired boiler package (option),"~1 t/h solid fuel (wood chips/pellets/rice husk) incl. fuel feed, grate, dust control, softener, installed",Getabec PCL (Thai fabrication and service),6000000,10000000,engineering estimate,"Sized for the five-press fleet (was ~0.5 t/h for one Duplex); sustainability path matching Deepgrooves NL precedent; higher capex, lower fuel opex in the North; NOT included in baseline total"
 steam,Steam balance of plant,"Traps, accumulator, condensate return",Forbes Marshall Thailand,0,0,included,Largely included in boiler package rows; line kept for RFQ completeness
-compressed_air,Screw compressor skid (oil-injected),"~7.5 kW VSD screw + refrigerated dryer (3 C PDP) + coalescing filters + ~500 L receiver, installed",Atlas Copco Thailand; Kaeser Thailand (SM-T/Aircenter); Ingersoll Rand Thailand,350000,600000,engineering estimate,14-30 m3/h demand is small (5-10 hp class); oil-injected + filter train meets 5 micron / 3 C spec
+compressed_air,Screw compressor skid (oil-injected),"~7.5 kW VSD screw + refrigerated dryer (3 C PDP) + coalescing filters + ~500 L receiver, installed","Atlas Copco Thailand; Kaeser Thailand (SM-T/Aircenter); Ingersoll Rand Thailand; Chinese brands with Thai offices (October 2026): Kaishan Compressor (Thailand), Denair Thailand, see suppliers/china-utilities.md",350000,600000,engineering estimate,"14-30 m3/h demand is small (5-10 hp class); oil-injected + filter train meets 5 micron / 3 C spec; Chinese route estimate 0.15M-0.3M THB installed (PM VSD 11 kW class USD 2k-5k, dryer, receiver, filters, installation)"
 compressed_air,True oil-free class-0 (option),Same duty in oil-free class-0,Atlas Copco (ZR/ZT); Kaeser,1200000,1800000,engineering estimate,Only if air contacts product stream; NOT included in baseline total
 cooling,Process chiller bank 2 x 250 kW,"2 x ~71 RT air-cooled screw/scroll chillers rated at 40 C ambient (CH-1, CH-2) + primary pumps + plate HX + warm and cold tanks + VFD supply pumps + controls, backbone (HX frame, tanks, pumps, mains) sized for four modules, installed",Trane Thailand; Carrier Thailand; Daikin Applied Thailand; Hitachi Thailand,4900000,7900000,engineering estimate,"Launch plant (October 2026): Duplex system ~261 kW hot-afternoon peak (scale.md) plus the Classic up to ~125 kW (Newbilt per press), ~390 kW against 500 kW installed; was 3 x 250 kW at 6.5-10.5M for five presses, less one module at ~1.6-2.6M THB (estimate); CH-3 and CH-4 come with the growth options; 3 x 350 kW frame pads stay the alternative (steam-cooling.html)"
 cooling,Cooling tower + HX loop (alternative),Dry cooler or FRP tower ~650-750 kW reject + plate HX + pumps + tanks + water treatment,"Liang Chi Thailand (tower, large service org); Process Cooling Solutions; Tasaki (integrators)",2000000,3500000,engineering estimate,Cheaper capex but wet-bulb-limited; hybrid tower + trim chiller is the efficiency-optimal design; NOT included in baseline total