About
Hejia Zhang is Editor-in-Chief of ShopBack's editorial team, covering consumer pricing, sale cycles, and retailer comparisons across Australia, Singapore, and the United States.
The reporting draws on ShopBack's internal merchant pricing data across thousands of retailers in the three markets, paired with primary sources: retailers' own sale histories, official promotional pages, and government statistics from the ABS, SingStat, and the BLS.
Areas of focus
Sale-cycle timing. Tracking when sales genuinely cut into margin versus when the markdown is theatre. The recurring annual cycle includes EOFY (June, AU), the Great Singapore Sale (June through August, SG), Singles' Day on November 11 (SG and increasingly AU), Black Friday and Cyber Monday (US, with growing AU and SG participation), Boxing Day (December 26, AU), and the major US weekends around Memorial Day, July 4th, and Labor Day.
Cross-retailer pricing. Same SKU compared across the field. In Australia that means Amazon AU, JB Hi-Fi, Harvey Norman, Officeworks, Big W, Kmart, plus Coles and Woolworths for groceries. In Singapore: Lazada, Shopee, Courts, Best Denki, FairPrice, Cold Storage. In the United States: Amazon, Walmart, Target, Best Buy, Costco.
Category playbooks. Running coverage on sneakers, beauty and skincare, consumer electronics, baby gear, travel, and groceries. Each playbook covers what to pay, when to pay it, and where the resale or open-box market sits twelve months on.
Cashback as a layer. How stacked cashback compares against credit-card rewards, store loyalty programs, and coupon stacking. The rules differ meaningfully across the three markets, so the coverage is written region by region rather than one size fits all.
Editorial standards
Every price reference in a Hejia Zhang article traces back to a primary source. That means the retailer's own site, the official sale page, government statistics from the ABS, SingStat, or the BLS, or ShopBack's internal merchant pricing data. It does not mean coupon aggregators, deal-listing sites, or third-party scrapers, none of which are cited.
For category playbooks (sneakers, beauty, electronics, baby gear), observed prices are checked against the actual in-cart price at the retailer during the article's coverage window, not the advertised banner. Travel and grocery pieces are verified against the booking flow or the basket total. Every number gets a date attached. The date_modified field at the top of each article reflects when those numbers were last re-verified, which happens at minimum every quarter.
Recommendations are conditional. "Best buy" is always stated for a particular reader under particular conditions, with the trade-offs at the top of the piece so readers can self-select. Errors get corrected in-article, with the date and the nature of the change noted at the top.
ShopBack receives a commission when readers complete a purchase through a cashback link. This commission does not vary by editorial coverage, and merchants cannot pay for inclusion, ranking, or favourable language. Where a merchant pays a notably higher commission than its peers on a comparable product, the conflict is disclosed inline. Editorial picks are not sold.
Get in touch
Tips, corrections, or merchant pricing data I should look at: [email protected]
Corrections are logged in-article with the date and what changed.
Editorial team
Hejia Zhang leads ShopBack's shopping editorial team and writes cross-vertical pieces on sale-cycle timing, cross-retailer pricing and the cashback layer. The other byline on the team:
- Garry Shi, Cashback Expert — ShopBack product expertise covering cashback, the wallet, ShopBack PayLater, stacking, and member features
Hejia Zhang and Garry cover complementary surfaces. Hejia Zhang is the outside-in editor (what to buy, when, where the cashback layer sits in a wider purchase decision); Garry is the inside-out editor (how the ShopBack product itself works once a shopper is using it).
Brands, work with us: [email protected].
Articles by Hejia Zhang
Do Singapore Credit Cards Charge Foreign Transaction Fees? Which Ones to Avoid Overseas
Most Singapore credit cards charge 2.5–3.5% in foreign transaction fees overseas. Here's which cards to use, which to avoid, and how to minimise hidden charges on your next trip.
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MediShield Life vs Integrated Shield Plan: What's the Real Cost Gap?
MediShield Life covers B2/C ward hospitalisation. An Integrated Shield Plan upgrades you to A ward or private hospital. The annual premium gap is $300–$1,500 depending on age and plan tier — but the real cost difference at claim time can be $20,000–$80,000.
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Is Charles & Keith vs Coach vs Kate Spade Worth the Price Gap for Everyday Use in Singapore? (2026)
A practical value comparison of Charles & Keith, Coach, and Kate Spade for everyday use in Singapore in 2026, covering price-per-use, durability, and when the price premium is justified.
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How Much Does a 7-Day Japan Trip Cost from Singapore in 2026? Full Budget Breakdown
A realistic, itemised breakdown of what a 7-day Japan trip costs from Singapore in 2026 — flights, accommodation, transport passes, food, and activities across budget, mid-range, and splurge tiers.
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How to Order from Taobao in Singapore in 2026: What's Changed, What It Costs, and How to Save
A 2026 guide to ordering from Taobao in Singapore — current shipping costs, what's changed with freight forwarders, and how to keep your total landed cost low.
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Best High-Interest Savings Accounts in Singapore Right Now: Full Comparison
UOB One, OCBC 360, SC Bonus$aver, and DBS Multiplier all advertise multi-percent headline rates, but only under specific conditions, and the headline figures change frequently. Here's which account actually pays the most for your spending and income profile in 2026.
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How Much Emergency Fund Do Singaporeans Actually Need? (And Where to Park It)
Most Singaporeans are told to save 3–6 months of expenses, but that range is too wide to be useful. Here's how to calculate your actual target and where to keep it so it earns interest without being locked up.
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Best Credit Cards for Grocery, Transport, and Dining in Singapore (Tiered by Spend)
The best Singapore cashback cards earn 5–10% on groceries, transport, and dining — but only within monthly caps and minimum-spend conditions. Here's the optimal card for each category tiered by your actual monthly spend in 2026.
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The Singapore Basics Test: Zara at SGD 25, Uniqlo at SGD 19, COS at SGD 45 (2026 Price Bands)
A practical durability and cost-per-wear comparison of Zara, Uniqlo, and COS for Singapore shoppers in 2026, covering fabric quality, longevity, and real value over time.
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Fast Fashion vs Investment Pieces: Real Cost Breakdown Over 3 Years for Singapore Shoppers (2026)
A 3-year total cost comparison of fast fashion vs investment pieces for Singapore shoppers in 2026, using real spend scenarios and cost-per-wear analysis to identify where each approach wins.
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