I believe our performance to date reflects that balance.
For the quarter, total segment EBIT was $84 million, and adjusted earnings per share was $0.68, up $0.75 on a sequential basis.
Performance Chemicals results also improved in the quarter, as automotive-related demand began a recovery and our self-help initiatives took hold.
We continued our intense focus on cash generation, delivering $99 million in operating cash flow in the quarter and $248 million for the second half, well ahead of our previously communicated expectation of $200 million of operating cash flow in the back half of the year.
On the performance front, we delivered adjusted earnings per share $2.08.
During the year, we delivered strong operating cash flow of $377 million and free cash flow of $177 million, largely through tight working capital management.
China is a good example of where COVID transmission has remained low and the economy is strengthening with GDP up 5% year-over-year in the September quarter.
Automotive production represents approximately 25% of our sales, ranging from tires on new cars to a host of applications in Performance Chemicals, such as structural adhesives, batteries, coatings and plastics.
External forecasting firms report light vehicle auto production down 3% year-over-year globally in the September 2020 quarter, as compared to a decline of 43% in the June quarter.
Current industry forecast calls for an 18% drop in global auto builds for the full year, including a small decrease of 3% for the December quarter.
Global replacement tire industry sales are now expected to decline 12% for the full calendar year of 2020 based on estimates from LMC.
Light vehicle replacement tire sales improved in all regions in the September quarter, down only 6% year-over-year, compared to a decline of 31% in the June quarter.
As with auto production, the December quarter is expected to approach 2019 levels with total replacement tire sales projected to be down 2% year-over-year according to LMC.
Given the global economic environment, the Reinforcement Materials segment delivered strong operating results with EBIT down $12 million, compared to the same quarter in fiscal 2019, but up $64 million sequentially, driven by improved global tire and automotive demand as compared to our third fiscal quarter.
Globally, volumes declined by a 11% in the fourth quarter, as compared to the same period of the prior year, largely due to the impact of COVID and demand in Europe, the Americas, Japan and Southeast Asia.
EBIT increased by $4 million, as compared to the third fiscal quarter, driven by higher demand in automotive-related applications.
EBIT decreased by $16 million year-over-year, primarily due to 9% lower volumes in our Formulated Solutions business from the impact of COVID-19, a more competitive pricing environment in our fumed metal oxides product line, and a weaker product mix in our specialty carbons and fumed metal products -- metal oxides product lines from lower demand in automotive applications.
In the fourth quarter, volumes increased 2% year-over-year in Performance Additives, driven by increased volumes related to our recent energy materials acquisition.
Sequentially, Performance Additives volumes increased 3% and Formulated Solutions volumes increased by 1%, while we are pleased to see the sequential improvement in volumes, segment volumes continue to be impacted by the pandemic, particularly in demand for automotive and construction applications.
Moving to Purification Solutions, EBIT in the fourth quarter of 2020 decreased by $3 million, compared to the fourth quarter of last year.
We ended the quarter with a cash balance of $151 million and our liquidity position remains strong at $1.4 billion.
During the fourth quarter of fiscal 2020, cash flow from operating activities were $99 million, including a decrease in net working capital of $7 million.
Capital expenditures for the fourth quarter of fiscal 2020 were $38 million, an additional uses of cash during the fourth quarter included $20 million for dividends.
During fiscal 2020 we generated $377 million of cash flow from operations, including a decrease in working capital of $185 million.
Capital expenditures for fiscal year 2020 were $200 million, which included both our targeted growth investments and the spend related to the North American EPA compliance.
Additional uses of cash during the fiscal year included $80 million for dividends and $44 million for share repurchases.
During the fourth quarter, the operating tax rate for fiscal year 2020 was 28% and we anticipate our operating tax rate for fiscal '21 to be in the range of 28% to 30%.
We expect capital expenditures to be between $175 million and $200 million in 2021 and this estimate includes continued EPA-related compliance spend and capital related to upgrading our new China carbon black plant to produce specialty products.
Based on this, we expect adjusted earnings per share in the first quarter to be in the range of $0.80 to $0.90.

Summary:
I believe our performance to date reflects that balance.
For the quarter, total segment EBIT was $84 million, and adjusted earnings per share was $0.68, up $0.75 on a sequential basis.
Performance Chemicals results also improved in the quarter, as automotive-related demand began a recovery and our self-help initiatives took hold.
During the fourth quarter of fiscal 2020, cash flow from operating activities were $99 million, including a decrease in net working capital of $7 million.
Based on this, we expect adjusted earnings per share in the first quarter to be in the range of $0.80 to $0.90.