(Translation Note: The following are extracted from Japanese original version of“Report of Quality Performance Test”, which was issued by Japan Testing Center ofConstruction Materials and separately attached herewith, and translated and edited by
Daisan Corporation who is fully responsible for any errors or misunderstandings in thisextraction, translation and edition.)

Report of Quality Performance Test
Issue No.: 15A1125
Issue Date: July 24, 2015
Applicant: Daisan Corporation, 15-16, Omata Minami-cho, Ashikaga, Japan
Title of Test: Performance Test of "Slider Board"
We certify that the results of the titled test are as shown in the attached report.
Signature of Japan Testing Center of Construction Materials
Name: (See Japanese orijinal.)
Address: 21-20, Inari 5-chome, Soka, Japan

Report of Quality Performance Test

Title of test: Performance test of "Slider Board"
Applicant: Daisan Corporation
Tests Performed: Test for estimating coefficients of static friction (hereinafter “staticfriction test”), and fatigue test
Test Specimen: Slider Board provided by Applicant (See Japanese original for details.)
References: Figs 1 thru 7, Photos 1 thru 8, and Tables 1 thru 3 (See Japanese originalfor details.)
Summary of Tests:
Outline of static friction test:
After a slip-preventive sheet, a lower member of specimen, an upper member ofspecimen, a slip-preventive sheet, a plate for vertical loading (hereinafter “loadingplate”), and loading weights were respectively set in this order on a test table,
certain force necessary for horizontal movement (such force is hereinafter“horizontal force”) was applied to the loading plate for one direction.

Thehorizontal force was continuously applied and sensed till the displacement ofloading plate became 0.5 mm. The application of horizontal force was repeatedthree times for each combination of test conditions where the sum of loading plate’s
weight and loading weights (such sum is hereinafter “vertical load”) was varied to
2.07kN, 3.60kN, 5.25kN and 9.16kN and the speed of horizontal movement (suchspeed is hereinafter “horizontal speed”) was varied to 0.02 mm/sec, 0.1 mm/sec and
0.5 mm/sec. Each application of horizontal force was started at any point along
the displacement line. In addition, the above tests were performed twice, i.e. forthe specimen before applying a fatigue test (i.e. for the virgin surface of specimen)
and for the specimen after applying a fatigue test.
Outline of fatigue test:
After the static friction tests on the virgin surface of specimen, a fatigue test to thesame surface of specimen was performed in the same setting where a programmed
horizontal force was repeatedly applied to the specimen under the conditions thatthe sequence of horizontal force was subject to a triangle wave form and theamplitude of displacement was ±10mm. In this fatigue test, the vertical load was9.16kN and the number of repeats was 5,000 times. Also, the horizontal speed
was 20 mm/sec up to 2,000 times of repeat and 10 mm/sec thereafter.
Results of Tests:
Result of static friction test before fatigue test (virgin surface):
Coefficient of static friction = 0.15
Result of static friction test after fatigue test:
Coefficient of static friction = 0.27
Appearance of specimen after all tests
Some wearing-off was observed at the lattice part of specimen’s sliding surface.
Note: The coefficients of static friction were estimated as gradients of straight lines
crossing at the origin of coordinate that were calculated and obtained
through the least squares method by using all test results obtained under thecombination of respective vertical loads and respective horizontal speeds.
(For further details, see Japanese original.)