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).
Articles by Hejia Zhang
Shopping the 8.8 Sale in Singapore 2026
8.8 fell on Saturday 8 August 2026 and Shopee SG and Lazada SG both ran their biggest August sale. Pick the platform by category and click through ShopBack.
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The 5 Hidden Taobao Costs That Push a SGD 200 Cart to SGD 340 in 2026
Shipping is one of five costs that inflate a Taobao order to Singapore in 2026. FX markup, GST, insurance, consolidator handling and unit-price traps add more.
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Singapore 2026 Sale Calendar: CNY, GSS, 9.9, 10.10, 11.11, 12.12
A month-by-month Singapore sale calendar for 2026: CNY for appliances, GSS June to August, payday sales monthly and 11.11 for the deepest cuts on everything.
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Singapore to Bangkok 2026: Flight, Train, Bus and Overland Compared
Flight from SGD 55, overland bus and train from SGD 90 over 3 days, and every option between. The 2026 Singapore to Bangkok comparison by cost, time, comfort.
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How Much Does a 5-Day Ho Chi Minh Trip Cost from Singapore in 2026?
A full 2026 SGD breakdown of a 5-day Ho Chi Minh City trip from Singapore: roughly SGD 440 to SGD 3,850 per person across flights, hotel, food, transport and tours.
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How Much Does a 5-Day Tokyo Trip Cost from Singapore in 2026?
The full 2026 breakdown of a 5-day Tokyo trip from Singapore: SGD 1,040 to SGD 6,310 per person across flights, hotel, food, transport and activities.
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Why Agoda Is Cheaper Than Direct Booking: The Hotel Pricing Mechanic (2026)
Agoda is often cheaper than booking direct because of how it sources hotel inventory, not because hotels secretly hate their own customers. Here is the supply-side mechanic explained for Singapore travellers, with SGD examples and an honest rule for when direct still wins.
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Can You Bring a 20,000mAh Power Bank on Scoot in 2026?
Yes, a 20,000mAh power bank is allowed on Scoot in 2026: about 74Wh, under the 100Wh limit. Carry-on only, no in-flight use. SIA and AirAsia compared.
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Is AirAsia a Good Airline? An Honest Singapore Flyer's Review (2026)
AirAsia is a solid pick for short-haul ASEAN trips from Singapore if you book light and accept the LCC trade-offs. For long-haul, premium comfort, or routes where it backtracks via KL, look elsewhere. A 2026 review from a Singapore flyer's perspective.
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Best Site for Cheap Flights from Singapore in 2026: The SG Flyer Site-Picker
A Singapore-specific decision rule for which booking site to use by trip type. Skyscanner finds the lowest fare most of the time, but the cheapest published fare is often unbookable. Here is how Singapore flyers actually win on price in 2026.
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