| 2022/3 | 2023/3 |
Cash flows from operating activities | | |
Profit before income taxes | 13,478 | 408,363 |
Depreciation | 373,867 | 314,258 |
Impairment losses | 577,428 | - |
Amortization of goodwill | 18,700 | 18,700 |
Loss on litigation | - | 372,483 |
Increase (decrease) in retirement benefit liability | 161 | 13,603 |
Increase (decrease) in provision for retirement benefits for directors (and other officers) | -65,280 | - |
Increase (decrease) in allowance for doubtful accounts | -8,457 | 483 |
Increase (decrease) in provision for bonuses | 38,829 | 44,339 |
Increase (decrease) in provision for warranties for completed construction | 97,012 | -99,683 |
Increase (decrease) in provision for loss on construction contracts | 15,430 | -15,430 |
Increase (decrease) in provision for loss on liquidation of subsidiaries | 31,997 | -28,273 |
Interest and dividend income | -46,273 | -53,577 |
Interest expenses | 11,704 | 12,686 |
Loss (gain) on sale of investment securities | -98,907 | -139,484 |
Loss (gain) on sale and retirement of non-current assets | 30,139 | 1,294 |
Decrease (increase) in trade receivables | 264,957 | 139,843 |
Decrease (increase) in inventories | -93,512 | -456,001 |
Increase (decrease) in trade payables | 230,753 | 256,768 |
Loss (gain) on valuation of investment securities | 12,970 | - |
Increase (decrease) in accrued expenses | -24,074 | 124,467 |
Other, net | -24,494 | -137,595 |
Subtotal | 1,356,430 | 777,246 |
Interest and dividends received | 46,464 | 53,626 |
Interest paid | -11,706 | -12,930 |
Income taxes refund (paid) | -191,383 | 55,188 |
Payments for loss on litigation | - | -372,483 |
Net cash provided by (used in) operating activities | 1,199,804 | 500,647 |
Cash flows from investing activities | | |
Net decrease (increase) in time deposits | 10,686 | -13,200 |
Purchase of property, plant and equipment | -85,773 | -657,135 |
Purchase of intangible assets | -6,898 | -32,827 |
Purchase of investment securities | -1,760 | -11,806 |
Proceeds from sale of investment securities | 133,001 | 216,242 |
Proceeds from refund of leasehold and guarantee deposits | 446 | 25,748 |
Other, net | -6,369 | -722 |
Net cash provided by (used in) investing activities | 43,333 | -473,701 |
Cash flows from financing activities | | |
Proceeds from long-term borrowings | - | 520,000 |
Repayments of long-term borrowings | -39,360 | -188,500 |
Redemption of bonds | -197,200 | -197,200 |
Repayments of lease liabilities | -89,501 | -77,230 |
Dividends paid | -199,443 | -200,017 |
Other, net | -19 | -0 |
Net cash provided by (used in) financing activities | -525,523 | -142,948 |
Effect of exchange rate change on cash and cash equivalents | 57,409 | 22,485 |
Net increase (decrease) in cash and cash equivalents | 775,023 | -93,517 |
Cash and cash equivalents at beginning of period | 3,251,008 | 4,026,032 |
Cash and cash equivalents at end of period | 4,026,032 | 3,932,514 |