PT.

HAMON INDONESIA

BSD City, November 03rd, 2014

PT. SLIPFORM INDONESIA

Gedung Graha Pena, lt. 17
Jl. Jend. Urip Sumoharjo No.20, Makassar

Phone : 0411 – 421849, 0411 – 421841

Fax : 0411 – 420726

Attn : Mr. Kurniawan Sadikin

Our ref : HI 1375 rev.2
Subject : Proposal Hamon Cooling Tower – For PT. SLIPFORM INDONESIA for Keera LNG project

Dear Sir,

Refer to your inquiry for the above subject,we are pleased to submit revised HAMON cooling tower proposal .

We believe that our offer can meet to your requirement and should you need any additional information or clarification,
please do not hesitate to contact us.

We look forward to work with you for this project.

Thank you and best regards

PT HAMON INDONESIA

Sinta Oktaviana
Sales

Contact Person :

Mr.YohanPurwonugroho –Sales Engineering– yohan.purwonugroho@hamonindonesia.com –Mobile +6281519320713

PT. HAMON INDONESIA

Jalan Tekno IV Blok E3 no 2 Sektor XI, Taman Tekno
BSD City, Tangerang 15314 • Indonesia
Tel. (62-21) 7588.0080 – 7588.0090
Fax. (62.21.7588.0077
E-Mail : info.hindo@hamon.com
http : www.hamon.com
 PT. HAMON INDONESIA

KEERA LNG PROJECT

COOLING TOWER

3 x VAP323

CAPACITY 370 m3/h

Pictures are not contractual: for illustration only.

Y/Ref. :
O/Ref. : HI 1375 Rev.02
Date : 03/11/2014

For the attention of

Sales representative Mss.Sinta Oktaviana Sales sinta.oktaviana@hamonindonesia.com
Estimates representative Mr. Yohan Purwonugroho Sales yohan.purwonugroho@hamonindonesia.com

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 PT. HAMON INDONESIA

Table of contents

A. TECHNICAL PART ................................................................................................................. 3

1 THERMAL CHARACTERISTICS.......................................................................................... 3
2 GENERAL CHARACTERISTICS.......................................................................................... 3
2.1 Dimensions per tower ....................................................................................................... 3
2.2 Motors (information per tower) .......................................................................................... 3
2.3 Fans (data per tower)........................................................................................................ 3
2.4 Motor fan coupling ............................................................................................................ 4
2.5 Sound data (per tower) ; +/- 3 dB(A) ................................................................................. 4
3 MATERIAlS AND EQUIPEMENT ......................................................................................... 4
3.1 Structure ........................................................................................................................... 4
3.2 Internals ............................................................................................................................ 4
4 TECHNICAL DESCRIPTION ................................................................................................ 4
4.1 Basin ................................................................................................................................ 4
4.2 Structure and casing ......................................................................................................... 4
4.3 Fan stack .......................................................................................................................... 4
4.4 Water distribution system .................................................................................................. 5
4.5 Infill : FREEFILM............................................................................................................... 5
4.6 Drift eliminators ................................................................................................................. 5
4.7 Mechanical parts............................................................................................................... 5
1 SCOPE OF SUPPLY ........................................................................................................... 6
1.1 From HAMON .................................................................................................................. 6
1.2 From the buyer/ user ...................................................................................................... 6
2 DELIVERY TIME .................................................................................................................. 6
3 PRICES ................................................................................................................................ 6
4 PAYMENT TERMS .............................................................................................................. 7
5 VALIDITY ............................................................................................................................. 7
6 GUARANTY ......................................................................................................................... 7
7 SUPERVISION COST .......................................................................................................... 7

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 PT. HAMON INDONESIA
A. TECHNICAL PART

1 THERMAL CHARACTERISTICS

Total exchanged power ................................................................................................ 4303 kW

Water flow rate ............................................................................................................. 370 m³/h
Water inlet temperature ................................................................................................ 40 °C
Water outlet temperature .............................................................................................. 30 °C
Wet bulb temperature ................................................................................................... 28 °C
Air pressure .................................................................................................................. 1 013 mbar
Water losses by evaporation ........................................................................................ 6,015 m3/h
Drift losses ................................................................................................................... 0.01 %

2 GENERAL CHARACTERISTICS

2.1 Dimensions per tower

Type of cooling tower ................................................................................................... VAP323

Operation principle ....................................................................................................... Counter flow
Type of ventilation ........................................................................................................ Axial/ Induced
Number of towers ......................................................................................................... 3
Dissipated power per tower .......................................................................................... 1.434,3 kW
Overall dimensions (approx) ......................................................................................... 3,25 x 3,25 mxm
Total height – with bassin ............................................................................................. 4,443 m
Weight empty without basin .......................................................................................... 2 280 kg
Weight empty with basin............................................................................................... 2 580 kg
Weight full without basin ............................................................................................... 2 790 kg
Weight full with basin .................................................................................................... 8 690 kg

2.2 Motors (information per tower)

Quantity/ nominal power ...................................................................... 1 x 22 u/ kW

Brand .................................................................................................. WEG or Wonder or Equal
Number of speeds ............................................................................... 1
Insulation / warming ............................................................................ Class F / B
Protection ............................................................................................ IP 55
Rotation speed .................................................................................... 600 rpm
Tension ............................................................................................... 380 V
Frequency ........................................................................................... 50 Hz

2.3 Fans (data per tower)

Quantity...................................................................One axial fan

Type .................................................................................................... To be confirmed
Marque ................................................................................................ ILMED or Equal
Fanspeed..................................................................................485 Rpm

Diametre / blades number...................................................2 -220 / to be confirmed m/ u

Material : - blades ............................................................. Aluminum

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 PT. HAMON INDONESIA
2.4 Motor fan coupling

Type .................................................................................................... Direct coupling

2.5 Sound data (per tower) ; +/- 3 dB(A)

( Sound pressure : average of 4 directions )

Sound pressure at ……20……. m ...................................................... 64,9 dB(A)

3 MATERIAlS AND EQUIPEMENT

3.1 Structure

Basin ................................................................................................... FRP

Casing ................................................................................................. FRP
Bolting and support ............................................................................. AISI 304
Fan stack ............................................................................................ FRP
Internal structure ................................................................................. HDGS
Motor support ...................................................................................... HDGS

3.2 Internals

Infill system : - type ................................. FREEFILM 20

- material ..................................... PVC
Water distribution : - Inlet flange ................................ 1
- Type .......................................... Pipe
- Material ..................................... PVC
- Pressure drop ................................. 8 kPA
- nozzles/sprayers ....................... PA 6
Drift eliminators PVC Blades

4 TECHNICAL DESCRIPTION

4.1 Basin
Basin in FRP or CONCRETE . The water outlet is either on the lateral side, or on the bottom with special flange to secure complete
drain. So the bacteria growth is impossible in the basin when the tower is empty.

4.2 Structure and casing

It is made FRP . So there is no part of the casing in steel, directly in contact with the water. The panels are assembled with stainless
steel bolting.

4.3 Fan stack

It is made in FRP, in a single piece. So the roundness is secured for a perfect and regular fan tip clearance. It is located inside the
cooling tower, which combines aesthetic design with limited size.

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 PT. HAMON INDONESIA

4.4 Water distribution system

Water distribution is made of PP pipes through highly efficient water distributors. The nozzles made of polyamide 6 (PA6) distribute the
water uniformly on the whole exchange surface. These nozzles are screwed to the distribution pipes, for easy maintenance and strong
mechanical resistance. They operate under low pressure to reduce drifts : 0.8 mWC, therefore considerably reduce the risk of
bacteriological contamination : indeed, low pressure creates heavier droplets, so less drifts out the cooling tower.
The water nozzles are widely sized to avoid any clogging, even in the case of high suspended solids content.

4.5 Infill : FREEFILM

The exchange surface, or infill is made of vacuum pressed PVC sheets.
This material is non-putrescible, long lasting, also offers the following benefits:
− has a very low pressure drop, so low power consumption thanks to the vertical channels,
− has a good thermal efficiency,
− is highly resistant to fouling thanks to large size channels : 20 mm.
− can be used up to 55 °C as standard, and up to 80 °C as option with PP or ABS material
− is resistant to chemicals.
− Maximum TSS : 80 ppm.

4.6 Drift eliminators

They are made in PVC blades; their high efficiency secures at least 0.01 % of the recirculating water flow.

4.7 Mechanical parts

The standard coupling (belt or gear) has been totally simplified: DIRECT COUPLING fan to low speed motor. Therefore, the
maintenance operation and costs are drastically reduced.

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 PT. HAMON INDONESIA
B. COMMERCIAL PART
1 SCOPE OF SUPPLY

1.1 From HAMON

- General studies

- Overall dimensions and loads, with piping connection.

- Supply, FOT Hamon Indonesia Werehouse of the following equipment:

. Casing
. Fan stack
. Infill
. Drift eliminators
. Water distribution
. Nozzles and sprayers
. Fan/ motor set including:
o Fan
o Motor
o Speed Reducer
o Drive Shaft
o Motor support
o Vibration swicth
- Operation and maintenance manual

1.2 From the buyer/ user

- Execution drawings, and works for foundation, civil works and anchoring.
- Utilities for the erection/ assembly on site.
- Area for assembly and erection and storage close to the cooling tower.
- Studies and execution of piping connections and piping : pumps, valves, nozzles to be connected to the basin side, gaskets,
counter flanges, temporary blind flanges, by-pass, overflow, drain…
- Pressure and leakage test of the piping.
- Studies and execution of electrical works and any monitoring device, driving, start up or protection.
- Earthing of mechanical and structural parts (motors, handrails, ladders…) and of the whole tower.
- Lighting.
- Basin covering and safety installation (for basin depth above 2 m).
- Water feed up for tests.
- Supply and installation of steels parts and bolting other than mentioned above.
- Spare parts and replacement parts.
- Instrumentation and probes.
- Lifting and handling equipment (if applicable) for operation and maintenance.
- Chemical Injection
- Slide Screen & slide gate
- Concrete Basin
- All things that not state in this offer

2 DELIVERY TIME

- Documentation: GA drawings and loads: 4 weeks from order receipt.

- Delivery of the equipment Ex Works: 22 weeks from approved GA drawing

Delivery time (including for drawings) starts from receipt of ALL the necessary technical information, except in case of force majeure.

3 PRICES

In the conditions above mentioned, prices are per UNIT in USD and excluding tax.

Unit Price Total Price

(USD) (USD)

For 3 Unit VAP 323 ........................................................................ 20,000.00 60,000.00

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 PT. HAMON INDONESIA
Optional Price for Cooling tower accessories :
- FRP Basin and Louver ....................................................................................................USD 2.000,00
- cage Ladder + Internal ladder......................................................................................... USD 700,00
- Bridge 1 unit..................................................................................................................... USD 300,00
- Handrail ........................................................................................................................... USD 600,00

4 PAYMENT TERMS

- 50% down Payment

- 50 % before Delivery

5 VALIDITY

This offer is valid 3 months from the offer date.

6 GUARANTY

One (1) year after start-up or 18 months after delivery whichever comes first
Warranty limited to material defect or workmanship and excluded mis operation
Note : warranty valid only in case supervision during erection done by
PT. HAMON INDONESIA

7 SUPERVISION COST

Supervision Cost : USD 300 /man /day exclude hotels and meals on site.
Overtime : USD 60/hour
Saturday, Sunday & Holidays : USD 80/hour

Page 7/7
 PT. HAMON INDONESIA

BSD City, November 14, 2014

PT. SLIPFORM INDONESIA

Gedung Graha Pena, lt. 17
Jl. Jend. Urip Sumoharjo No.20, Makassar

Phone : 0411 – 421849, 0411 – 421841

Fax : 0411 – 420726

Attn : Mr. Kurniawan Sadikin

Our ref : HI 1375A
Subject : Proposal Chemical Injection system For PT. SLIPFORM INDONESIA for Keera LNG project

Dear Sir,

Refer to your inquiry for the above subject,we are pleased to submit Chemical Injection system for your
consideration.

A. Cooling Tower Sea Water :

Data Cooling Tower :
- Recirculation Flow : 370 m3/hr
- Make Up Water : 5.25 m3/hr 126 m3/day
- Operasional : 24 hr/day
- Holding volume air Cooling : 100 m3

B. Chemical Water Treatment :

1. PAY OFF CWT SRP
Function : Scale and Corrosion Inhibitor
Packaging : 30 Liter/Pail (± 35 Kg)
Dosis : 20 Ppm
Chemical consumption : (Make Up Water x 20 Ppm) / 1.000
: 2,5 Liter/day = 75 Liter/Month
Chemical Dillution concentration : 8,75 %
Chemical Solution consumption : 17,5 Liter/Week
Chemical Tank capacity : 200 Liter (± for 7 days)
Tank quantity : 1 unit
Dosing Pump capacity required : 6,9 Liter/hr
Dosing Pump capacity provided : 10,7 Liter/hr
Pressure : 4,2 Bar

PT. HAMON INDONESIA

Jalan Tekno IV Blok E3 no 2 Sektor XI, Taman Tekno
BSD City, Tangerang 15314 • Indonesia
Tel. (62-21) 7588.0080 – 7588.0090
Fax. (62.21.7588.0077
E-Mail : info.hindo@hamon.com
http : www.hamon.com
 PT. HAMON INDONESIA

Dosing pump quantity : 1 unit running (1 unit stand by)

Dosing Pump type : Chemtech

2. PAY- OFF CWT B-1

Function : Biocide Non Oxidizing
Density : 1,1 ~ 1,3
Packaging : 30 Liter/Pail (± 40 Kg)
Dosis : 30 Ppm
Chemical consumption : (Holding Volume x 30 Ppm) / 1.000
: 3 Ltr/day for aplication : 1 day 3 timesi (9 ltr)

C. Total Fee of Chemical Cooling Tower :

- Pay Off CWT SRP /Month : IDR. 4.500.000,-
- Pay Off CWT B-1 /Month : IDR. 8.000.000,-
Total : IDR .12.500.000,-

D. Price for Cooling Tower Dosing System

- 1 unit dosing pump @ $ 500 x 2 unit : USD 1.000
- 1 unit Fiber Tank cap.200 liter + piping + pressure gauge : USD 700

E. Term and Condition

- Delivery : 12 Weeks FOT Hamon Indonesia Ware House
- Price FOT Hamon Indonesia Ware House excluded any taxes
- Water support analysis : 2 times/Months . (customer has to provide water sample)

We believe that our offer can meet to your requirement and should you need any additional information or
clarification, please do not hesitate to contact us.

We look forward to work with you for this project.

Thank you and best regards

PT HAMON INDONESIA

Sinta Oktaviana
Sales

PT. HAMON INDONESIA

Jalan Tekno IV Blok E3 no 2 Sektor XI, Taman Tekno
BSD City, Tangerang 15314 • Indonesia
Tel. (62-21) 7588.0080 – 7588.0090
Fax. (62.21.7588.0077
E-Mail : info.hindo@hamon.com
http : www.hamon.com