Sandfire ($SFR) paid US$117 million in dividends during the September quarter and finished with US$342 million of unaudited net cash, against US$353 million at June. Its 27 October report provides a useful way to examine the payout: a cash bridge that deducts investment, tax, leases and financing costs from mine operating inflows. Original report, page 8.

The result is broadly encouraging. Two operating mines generated enough cash to come close to funding a substantial distribution while retaining a sizeable balance. But the deductions deserve the same attention as the dividend. A strong copper price and an attractive cost per pound do not tell shareholders how much cash remains available to them.

The cash bridge earns its space

The following figures are US$ millions, rounded as displayed in the company's September-quarter bridge. They are cash movements, rather than a reconstruction from EBITDA. Report, page 8 and note (e).

September-quarter cash movementUS$m
MATSA operating inflow132
Motheo operating inflow126
Exploration, sustaining and growth investment(74)
Tax(53)
Other outflows(17)
Lease repayments(7)
Interest and other financing costs(2)
Dividend paid(117)

The displayed inflows less the deductions before the dividend amount to approximately US$105 million. That is our arithmetic from rounded bars, not a newly defined company performance measure. The dividend exceeded that amount by about US$12 million; reported closing net cash fell US$11 million, with rounding affecting the reconciliation.

Several details prevent an accidental overstatement. The mine operating inflows exclude exploration and income tax, so those items must still be deducted. The investment bar uses cash expenditure, while expenditure elsewhere in the report uses accrual accounting. The net-cash definition excludes leases, accrued interest, capitalised transaction costs and revolving short-term VAT working-capital facilities. An undrawn US$650 million corporate revolver is additional borrowing capacity, rather than cash already earned. Report, page 8 and notes (d)–(e).

The company describes the distribution as effectively funded from quarterly free cash flow. The bridge supports the broad point that operations financed most of it. It also shows why “effectively” matters: owners received a little more than the quarter generated after the displayed cash deductions.

Motheo's cost advantage has moving parts

Motheo's implied C1 cost was US$0.65/lb, alongside an underlying operating unit cost of US$48 per tonne of ore. Sandfire attributes part of the low C1 result to negative treatment and refining charges and a higher rate of deferred waste stripping. Approximately US$14 million of Motheo's US$20 million accrued investment went to deferred stripping. Report, pages 1 and 5.

Negative treatment charges mean the concentrate market is providing unusually favourable terms to the miner. They should not automatically become a permanent assumption in a valuation. Deferred stripping also has an important accounting consequence: cash spent removing waste can support future ore production while being treated as capital expenditure. Investors assessing shareholder cash still need to deduct the spending, whichever operating-cost line it bypasses.

Nor should the quarter's 38.9kt copper-equivalent production be described as physical copper. Sandfire reported 26,987 tonnes of copper, with zinc, lead and silver contributing to the equivalent measure using specified prices. Zinc, lead and silver contribute real value. The conversion needs its label. Report, pages 1 and 11–15.

The strongest positive argument is that Sandfire has achieved this cash performance while investing in its mines and carrying an undrawn corporate facility. A modest quarterly reduction in net cash does not by itself make a dividend imprudent. Equally, annualising one distribution would assume away changing metal prices, concentrate terms, tax payments and investment schedules.

We would judge the next payout against several quarters of cash after those obligations. Sustained operating inflows and a stable balance after investment would strengthen the distribution case. A rising dividend financed by a steadily declining cash balance would require a different explanation.