Resource Business

NEXT SCIENCE

We are collecting aggregates from under the sea, transforming them into superior quality products and supplying them to ready-mixed concrete companies.
We have one of the best washing facilities, salinity control facilities and the largest cleaning facilities in the metropolitan area.

Marine sand production process

1. Departure

2. Extraction

3. Berthing

4. Discharging

5. Sorting

6. Washing

7. Shipment

Facility Status

Item
Equipment
Use
Capacity
Washing
Decontamination facility
Sand washing
700 ㎥ / 8 HR
Discharge & Shipment
Portable conveyor 1
Sand transfer
350 ㎥ / HR
Portable conveyor 2
Sand transfer
350 ㎥ / HR
Portable conveyor 3
Sand transfer
350 ㎥ / HR
Item
Name
Use
Capacity
Steamers
Dongwon 1st
Sand extraction at EEZ
499ton(1,200㎥)
Tug
301st Geumdan
Barge tugging
191ton
Tug
201st Geumdan
Barge tugging
283ton
Barge
Dongwon 102nd
3,524ton(3,977㎥)
Barge
Dongwon 202nd
3,522ton(4,122㎥)
Item
Model
Numbers
Outsourcing
Use
Bucket Capacity
Loader
CAT 980 F
1
1
Loading
4.7 ㎥
Excavator
CAT 245 B
1
3
Unloading
4.3 ㎥

Production Capacity

Shipping Capacity
Conveyor Handling Capacity
Sand storage yard
Sand Production Capacity
9,299㎥/shipment
13,138㎥/day
12,000㎥
21,000㎥/day

Maximum production capacity 6 million ㎥

Products

Item
Product
Size(mm)
Use
Gravel
O/S
40 - 150
Dam concrete, Foundation work
#467
40
Civil work foundation concrete
#57
25
PC pile, telephone pole, R/C
#67
19
PC pile, telephone pole, R/C
#78
13
Asphalt, water-proof work, well
Sand
Big Size
2.9 - 3.5
Block, brick, hume pipe
Middle Size
2.3 - 2.8
Concrete, R/C
Small Size
below 2.0
Plastering work
EEZ sand
Below 1.5
Road paving, filling work (gas, waterpipe)
Mixed aggregate
Basic floor
40 - #200
Road paving foundation
Sub-basic floor
75 - #200
Road paving sub foundation
Fine aggregate
Stone powder
5 - #200
Block, brick, mix-use for mixed aggregate
Asphalt
#4670
4 - #200
Foundation, block base course production
Concrete
#570
25 - #200
Middle layer, binder course production
#670
19 - #200
Middle layer, binder course production
#780
13 - #200
Surface layer, wearing course production
Others
78㎜ rubble stone
40 - 75
Temporary road, MAT compactness
150㎜ rubble stone
75 - 150
Temporary road, MAT compactness