Variables of Contract Price Escalation Factors (K)
(1987=100)


Year  2023

Variable
JAN.
FAB.
MAR.
APR.
MAY.
JUN.
JUL.
AUG.
SEP.
OCT.
NOV.
DEC.
M
CONSTRUCTION MATERIALS(EXCLUDE CEMENT & STEEL)
317.3
317.8
318.2
318.4
318.7
318.0
316.4
317.0
317.1
317.8
317.5
315.9
S
STEEL PRICE INDEX
279.7
279.8
282.8
280.3
274.6
273.8
272.1
270.9
270.6
270.3
266.4
266.1
C
CEMENT PRICE INDEX
201.6
202.5
202.5
203.8
203.8
202.5
202.5
202.5
202.9
202.4
202.4
202.4
G
IRON SHEET PRICE INDEX
441.0
439.2
440.2
437.0
428.3
427.3
423.4
421.6
418.2
419.3
419.6
419.6
I
GENERAL CONSUMER PRICE INDEX OF THAILAND
277.8
277.5
276.8
277.3
275.3
276.9
276.9
278.4
277.4
276.7
276.0
274.7
F
HIGH SPEED DIESEL PRICE INDEX
602.3
593.0
580.1
566.8
553.3
548.0
547.0
550.1
535.8
512.9
512.6
512.3
A
ASPHALT PRICE INDEX
529.4
538.0
531.3
523.1
523.1
515.3
505.2
497.8
508.1
522.0
493.8
479.3
E
MACHINERY AND EQUIPMENT PRICE INDEX
373.0
373.0
373.0
373.0
373.0
373.0
373.0
373.0
386.7
388.7
388.7
388.7
GIP
GALVANIZED IRON PIPE PRICE INDEX
511.1
502.5
506.9
506.9
480.3
460.0
455.8
451.2
455.4
455.4
447.4
439.2
AC
ASBESTOS PIPE PRICE INDEX
158.7
159.6
160.5
161.4
162.2
162.2
162.2
165.2
165.2
166.1
166.1
166.1
PVC
PVC WATER PIPE PRICE INDEX
143.7
151.7
156.8
152.8
146.8
142.9
142.9
146.8
152.8
152.8
152.8
152.8
W
INSULATED WIRE PRICE INDEX
343.1
343.1
343.1
343.1
343.1
343.1
343.1
344.9
344.9
344.9
344.9
344.9
PE
HYDENSITY POLYETHYLENE PIPE PRICE INDEX
265.5
265.5
265.5
265.5
265.5
265.5
265.5
265.5
265.5
265.5
265.5
265.5

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